485BPOS

As filed with the Securities and Exchange Commission on February 8, 2013

1933 Act Registration No. 033-01182

 1940 Act File No. 811-04447

SECURITIES AND EXCHANGE COMMISSION

Washington D.C.  20549

___________________________________

FORM N-1A

REGISTRATION STATEMENT UNDER THE SECURITIES ACT OF 1933S

Pre-Effective Amendment No.    £

Post-Effective Amendment No.   32   S

and/or

REGISTRATION STATEMENT UNDER THE INVESTMENT COMPANY ACT OF 1940S

Amendment No. 33  S (Check appropriate box or boxes.)
BRANDYWINE FUND, INC.              (Exact Name of Registrant as Specified in Charter)
P.O. Box 4166
Greenville, Delaware	19807
(Address of Principal Executive Offices)	(Zip Code)
(302) 656-3017                           (Registrant’s Telephone Number, including Area Code)
	Copy to:
	Richard L. Teigen
William F. D’Alonzo	Foley & Lardner LLP
3711 Kennett Pike	777 East Wisconsin Avenue
Greenville, Delaware  19807	Milwaukee, Wisconsin 53202
(Name and Address of Agent for Service)

Approximate Date of Proposed Public Offering:  As soon as practicable after the Registration Statement becomes effective.

It is proposed that this filing become effective (check appropriate box):

T           immediately upon filing pursuant to paragraph (b)

£           on (date) pursuant to paragraph (b)

£           60 days after filing pursuant to paragraph (a) (1)

£           on (date) pursuant to paragraph (a) (1)

£           75 days after filing pursuant to paragraph (a) (2)

£           on (date) pursuant to paragraph (a) (2) of Rule 485

If appropriate, check the following box:

£   this post-effective amendment designates a new effective date for a previously filed post-effective amendment.

This Post-Effective Amendment (“PEA”) No. 32 to the Registration Statement on Form N-1A of Brandywine Fund, Inc. (the “Company”) hereby incorporates Parts A, B and C from the Company’s PEA No. 31 on Form N-1A filed January 31, 2013.  This PEA No. 32 is filed for the sole purpose of submitting the XBRL exhibit for the risk/return summary first provided in PEA No. 31 to the Company’s Registration Statement.

SIGNATURES

Pursuant to the requirements of the Securities Act of 1933 and the Investment Company Act of 1940, the Registrant certifies that it meets all of the requirements for effectiveness of this Amended Registration Statement under Rule 485(b) under the Securities Act and has duly caused this Amended Registration Statement to be signed on its behalf by the undersigned, thereunto duly authorized, in the City of Wilmington and State of Delaware on the 8th day of February, 2013.

BRANDYWINE FUND, INC.

(Registrant)

By:  /s/ William F. D’Alonzo                  

       William F. D’Alonzo, President

Pursuant to the requirements of the Securities Act of 1933, this Amended Registration Statement has been signed below by the following persons in the capacities and on the dates indicated.

Name		Title	Date
/s/ William F. D’Alonzo		Principal Executive
William F. D’Alonzo		Officer and Director	February 8, 2013
/s/ J. Gordon Kaiser*		Principal Financial and	February 8, 2013
J. Gordon Kaiser		Accounting Officer
/s/ Charles Quentin Sweeting Jackson*		Director	February 8, 2013
Charles Quentin Sweeting Jackson
/s/ Stuart A. McFarland*		Director	February 8, 2013
Stuart A. McFarland
/s/ Stephen M. Wynne*		Director	February 8, 2013
Stephen M. Wynne
/s/ Thomas D Wren*		Director	February 8, 2013
Thomas D Wren
/s/ James W. Zug*		Director	February 8, 2013
James W. Zug
*By:	/s/ William F. D’Alonzo
William F. D’Alonzo Attorney-In Fact pursuant to Power of Attorney

EXHIBIT INDEX

Exhibit	Exhibit No.
Instance Document	EX-101.INS
Schema Document	EX-101.SCH
Calculation Linkbase Document	EX-101.CAL
Definition Linkbase Document	EX-101.DEF
Label Linkbase Document	EX-101.LAB
Presentation Linkbase Document	EX-101.PRE

XML

Label	Element	Value
Risk/Return:	rr_RiskReturnAbstract
Prospectus Date	rr_ProspectusDate	Jan. 31, 2013

XML

Label

Element

Value

Risk/Return:

rr_RiskReturnAbstract

Risk/Return [Heading]

rr_RiskReturnHeading

BRANDYWINE FUND

Objective [Heading]

rr_ObjectiveHeading

Investment Objective

Objective, Primary [Text Block]

rr_ObjectivePrimaryTextBlock

Brandywine Fund seeks capital appreciation.

Expense [Heading]

rr_ExpenseHeading

Fees and Expenses of the Fund

Expense Narrative [Text Block]

rr_ExpenseNarrativeTextBlock

This table describes the fees and expenses that you may pay if you buy and hold shares of the Brandywine Fund.

Shareholder Fees Caption [Text]

rr_ShareholderFeesCaption

Shareholder Fees (fees paid directly from your investment)

Operating Expenses Caption [Text]

rr_OperatingExpensesCaption

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Portfolio Turnover [Heading]

rr_PortfolioTurnoverHeading

Portfolio Turnover

Portfolio Turnover [Text Block]

rr_PortfolioTurnoverTextBlock

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 256 % of the average value of its portfolio.

Portfolio Turnover, Rate

rr_PortfolioTurnoverRate

256.00%

Expenses Explanation of Nonrecurring Account Fee [Text]

rr_ExpensesExplanationOfNonrecurringAccountFee

(transfer agent charge of $15 for each wire redemption)

Expense Example [Heading]

rr_ExpenseExampleHeading

Example

Expense Example Narrative [Text Block]

rr_ExpenseExampleNarrativeTextBlock

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Expense Example by, Year, Caption [Text]

rr_ExpenseExampleByYearCaption

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Strategy [Heading]

rr_StrategyHeading

Principal Investment Strategies

Strategy Narrative [Text Block]

rr_StrategyNarrativeTextBlock

Brandywine Fund invests principally in common stocks of U.S. companies and, to a lesser extent, in equity securities of foreign issuers, usually those that are publicly traded in the United States either directly or through American Depositary Receipts (“ADRs”).  The Fund is not subject to a percentage limit with regard to its investment in foreign issuers.  In addition to common stocks and ADRs , equity securities in which the Fund may invest include preferred stocks, convertible securities, and rights.   The Fund utilizes a fundamentals-driven, company-by-company investment approach that is based on the belief that you should invest in individual businesses, not in the stock market.   It will invest in companies in a broad range of industries and generally focuses on companies whose earnings under normal economic conditions are growing by at least 20% per year and whose stocks sell at reasonable price-to-earnings ratios.  The Fund targets fundamentally sound companies of all sizes that are experiencing positive change.

The Fund employs a firm sell discipline.  The Fund will sell a stock:

n    With deteriorating fundamentals such as contracting margins or reduced revenue growth

n    When investor expectations have become unrealistically high

n    When it finds a better investment

While this sell discipline is likely to cause the Fund to have an annual portfolio turnover rate that may exceed 200%, it also causes the Fund to keep seeking better investment alternatives.

Risk [Heading]

rr_RiskHeading

Principal Investment Risks

Risk Narrative [Text Block]

rr_RiskNarrativeTextBlock

There is a risk that you could lose all or a portion of your money on your investment in Brandywine Fund.  This risk may increase during times of significant market volatility.  The following additional risks could affect the value of your investment:

n Market Risk – The prices of the stocks and ADRs in which the Fund invests may decline for a number of reasons.  These reasons include factors that may be specific to one or more stocks in which the Fund invests as well as factors that affect the equity securities markets generally.  The price declines may be steep, sudden and/or prolonged.

n Foreign Security Risk – Investments in foreign securities, even though publicly traded in the United States, may involve risks in addition to those inherent in domestic investments.  Foreign companies may not be subject to regulatory requirements comparable to those of U.S. companies and, as a consequence, there may be less publicly available information about such companies.  Also, foreign companies may not be subject to uniform accounting, auditing and financial reporting standards and requirements comparable to those applicable to U.S. companies.

n Portfolio Turnover Risk – High portfolio turnover necessarily results in greater transaction costs, such as brokerage commissions, which the Fund must pay, and short-term capital gains (or losses) to investors.  Greater transaction costs may reduce Fund performance.  Distributions to shareholders of short-term capital gains are taxed as ordinary income under current federal income tax laws.

n Mid-Cap Company Risk – There is a risk that the securities of mid-capitalization companies may have limited liquidity and greater price volatility than securities of large- capitalization companies, which can negatively affect the Fund’s ability to sell these securities at quoted market prices.

The Fund is a suitable investment only for those investors who have long-term investment goals such as investing for retirement.  If you are uncomfortable with an investment that will fluctuate in value, the Fund may not be the right choice for you.

Risk Lose Money [Text]

rr_RiskLoseMoney

There is a risk that you could lose all or a portion of your money on your investment in Brandywine Fund.

Bar Chart and Performance Table [Heading]

rr_BarChartAndPerformanceTableHeading

Performance

Performance Narrative [Text Block]

rr_PerformanceNarrativeTextBlock

The bar chart and table that follow provide some indication of the risks of investing in Brandywine Fund by showing changes in the Fund’s performance from year to year and by showing how its average annual returns over 1, 5 and 10 years compare with those of the S&P 500®, Russell 3000® and Russell 3000® Growth Indexes.   For a description of the indexes, please see “Index Descriptions” on page 17.   Updated performance is available on the Fund’s website , www.brandywinefunds.com.  Please be aware that past performance (before and after taxes) is not necessarily an indication of future performance.

Performance Information Illustrates Variability of Returns [Text]

rr_PerformanceInformationIllustratesVariabilityOfReturns

The bar chart and table that follow provide some indication of the risks of investing in Brandywine Fund by showing changes in the Fund's performance from year to year and by showing how its average annual returns over 1, 5 and 10 years compare with those of the S&P 500, Russell 3000 and Russell 3000 Growth Indexes.

Performance Availability Website Address [Text]

rr_PerformanceAvailabilityWebSiteAddress

www.brandywinefunds.com

Performance Past Does Not Indicate Future [Text]

rr_PerformancePastDoesNotIndicateFuture

Please be aware that past performance (before and after taxes) is not necessarily an indication of future performance.

Bar Chart [Heading]

rr_BarChartHeading

Brandywine Fund, Inc. (Total return per calendar year)

Bar Chart Closing [Text Block]

rr_BarChartClosingTextBlock

Note:  During the 10-year period shown on the bar chart, the Fund’s highest total return for a quarter was 20.62% (quarter ended December 31, 2010) and the lowest total return for a quarter was -24.98% (quarter ended September 30, 2011).

Highest Quarterly Return, Label

rr_HighestQuarterlyReturnLabel

highest total return

Highest Quarterly Return, Date

rr_BarChartHighestQuarterlyReturnDate

Dec. 31, 2010

Highest Quarterly Return

rr_BarChartHighestQuarterlyReturn

20.62%

Lowest Quarterly Return, Label

rr_LowestQuarterlyReturnLabel

lowest total return

Lowest Quarterly Return, Date

rr_BarChartLowestQuarterlyReturnDate

Sep. 30, 2011

Lowest Quarterly Return

rr_BarChartLowestQuarterlyReturn

(24.98%)

Index No Deduction for Fees, Expenses, Taxes [Text]

rr_IndexNoDeductionForFeesExpensesTaxes

(reflects no deduction for fees, expenses, or taxes)

Performance Table Uses Highest Federal Rate

rr_PerformanceTableUsesHighestFederalRate

The after-tax returns above were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.

Performance Table Not Relevant to Tax Deferred

rr_PerformanceTableNotRelevantToTaxDeferred

Actual after-tax returns depend on an investor's tax situation and may differ from those shown. After -tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.

Performance Table Explanation after Tax Higher

rr_PerformanceTableExplanationAfterTaxHigher

The Fund's "Return after taxes on distributions and sale of Fund shares" may be higher than its returns before taxes and after taxes on distributions because it may include a tax benefit resulting from the capital losses that would have been incurred.

Performance Table Closing [Text Block]

rr_PerformanceTableClosingTextBlock

The after-tax returns above were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns depend on an investor’s tax situation and may differ from those shown.   After -tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.  The Fund’s “Return after taxes on distributions and sale of Fund shares” may be higher than its returns before taxes and after taxes on distributions because it may include a tax benefit resulting from the capital losses that would have been incurred.

Caption

rr_AverageAnnualReturnCaption

Average Annual Total Returns (for the periods ended December 31, 2012 )

S&P 500 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

16.00%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

1.66%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.10%

Russell 3000 Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

16.42%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

2.04%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.68%

Russell 3000 Growth Index (reflects no deduction for fees, expenses or taxes)

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

15.21%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

3.15%

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

7.69%

BRANDYWINE FUND

Risk/Return:

rr_RiskReturnAbstract

Maximum Sales Charge (Load) Imposed on Purchases

rr_MaximumSalesChargeImposedOnPurchasesOverOfferingPrice

none

Maximum Deferred Sales Charge (Load)

rr_MaximumDeferredSalesChargeOverOfferingPrice

none

Maximum Sales Charge (Load) Imposed on Reinvested Dividends and Distributions

rr_MaximumSalesChargeOnReinvestedDividendsAndDistributionsOverOther

none

Redemption Fee (transfer agent charge of $15 for each wire redemption)

rr_RedemptionFeeOverRedemption

none

Exchange Fee

rr_ExchangeFee

none

Management Fees

rr_ManagementFeesOverAssets

1.00%

Distribution and/or Service (12b-1) Fees

rr_DistributionAndService12b1FeesOverAssets

none

Other Expenses

rr_OtherExpensesOverAssets

0.08%

Total Annual Fund Operating Expenses

rr_ExpensesOverAssets

1.08%

Expense Example, with Redemption, 1 Year

rr_ExpenseExampleYear01

110

Expense Example, with Redemption, 3 Years

rr_ExpenseExampleYear03

343

Expense Example, with Redemption, 5 Years

rr_ExpenseExampleYear05

595

Expense Example, with Redemption, 10 Years

rr_ExpenseExampleYear10

1,317

Annual Return 2003

rr_AnnualReturn2003

31.46%

Annual Return 2004

rr_AnnualReturn2004

13.11%

Annual Return 2005

rr_AnnualReturn2005

14.39%

Annual Return 2006

rr_AnnualReturn2006

11.09%

Annual Return 2007

rr_AnnualReturn2007

21.80%

Annual Return 2008

rr_AnnualReturn2008

(44.50%)

Annual Return 2009

rr_AnnualReturn2009

8.62%

Annual Return 2010

rr_AnnualReturn2010

21.11%

Annual Return 2011

rr_AnnualReturn2011

(16.04%)

Annual Return 2012

rr_AnnualReturn2012

5.25%

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.25%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

(8.39%)

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

4.03%

BRANDYWINE FUND | After Taxes on Distributions

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

5.25%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

(8.42%)

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

3.72%

BRANDYWINE FUND | After Taxes on Distributions and Sale of Fund shares

Risk/Return:

rr_RiskReturnAbstract

Average Annual Returns, 1 Year

rr_AverageAnnualReturnYear01

3.41%

Average Annual Returns, 5 Years

rr_AverageAnnualReturnYear05

(6.94%)

Average Annual Returns, 10 Years

rr_AverageAnnualReturnYear10

3.51%

XML

BRANDYWINE FUND | BRANDYWINE FUND

BRANDYWINE FUND

Investment Objective

Brandywine Fund seeks capital appreciation.

Fees and Expenses of the Fund

This table describes the fees and expenses that you may pay if you buy and hold shares of the Brandywine Fund.

Shareholder Fees (fees paid directly from your investment)

Shareholder Fees (USD $)	BRANDYWINE FUND
Maximum Sales Charge (Load) Imposed on Purchases	none
Maximum Deferred Sales Charge (Load)	none
Maximum Sales Charge (Load) Imposed on Reinvested Dividends and Distributions	none
Redemption Fee (transfer agent charge of $15 for each wire redemption)	none
Exchange Fee	none

Annual Fund Operating Expenses (expenses that you pay each year as a percentage of the value of your investment)

Annual Fund Operating Expenses	BRANDYWINE FUND
Management Fees	1.00%
Distribution and/or Service (12b-1) Fees	none
Other Expenses	0.08%
Total Annual Fund Operating Expenses	1.08%

Example

This example is intended to help you compare the cost of investing in the Fund with the cost of investing in other mutual funds.

The example assumes that you invest $10,000 in the Fund for the time periods indicated and then redeem all of your shares at the end of those periods.  The example also assumes that your investment has a 5% return each year and that the Fund’s operating expenses remain the same.

Although your actual costs may be higher or lower, based on these assumptions, your costs would be:

Expense Example (USD $)	1 Year	3 Years	5 Years	10 Years
BRANDYWINE FUND	110	343	595	1,317

Portfolio Turnover

The Fund pays transaction costs, such as commissions, when it buys and sells securities (or “turns over” its portfolio).  A higher portfolio turnover rate may indicate higher transaction costs and may result in higher taxes when Fund shares are held in a taxable account.  These costs, which are not reflected in annual fund operating expenses or in the example, affect the Fund’s performance.  During the most recent fiscal year, the Fund’s portfolio turnover rate was 256 % of the average value of its portfolio.

Principal Investment Strategies

Brandywine Fund invests principally in common stocks of U.S. companies and, to a lesser extent, in equity securities of foreign issuers, usually those that are publicly traded in the United States either directly or through American Depositary Receipts (“ADRs”).  The Fund is not subject to a percentage limit with regard to its investment in foreign issuers.  In addition to common stocks and ADRs , equity securities in which the Fund may invest include preferred stocks, convertible securities, and rights.   The Fund utilizes a fundamentals-driven, company-by-company investment approach that is based on the belief that you should invest in individual businesses, not in the stock market.   It will invest in companies in a broad range of industries and generally focuses on companies whose earnings under normal economic conditions are growing by at least 20% per year and whose stocks sell at reasonable price-to-earnings ratios.  The Fund targets fundamentally sound companies of all sizes that are experiencing positive change.

The Fund employs a firm sell discipline.  The Fund will sell a stock:

n    With deteriorating fundamentals such as contracting margins or reduced revenue growth

n    When investor expectations have become unrealistically high

n    When it finds a better investment

While this sell discipline is likely to cause the Fund to have an annual portfolio turnover rate that may exceed 200%, it also causes the Fund to keep seeking better investment alternatives.

Principal Investment Risks

There is a risk that you could lose all or a portion of your money on your investment in Brandywine Fund.  This risk may increase during times of significant market volatility.  The following additional risks could affect the value of your investment:

n Market Risk – The prices of the stocks and ADRs in which the Fund invests may decline for a number of reasons.  These reasons include factors that may be specific to one or more stocks in which the Fund invests as well as factors that affect the equity securities markets generally.  The price declines may be steep, sudden and/or prolonged.

n Foreign Security Risk – Investments in foreign securities, even though publicly traded in the United States, may involve risks in addition to those inherent in domestic investments.  Foreign companies may not be subject to regulatory requirements comparable to those of U.S. companies and, as a consequence, there may be less publicly available information about such companies.  Also, foreign companies may not be subject to uniform accounting, auditing and financial reporting standards and requirements comparable to those applicable to U.S. companies.

n Portfolio Turnover Risk – High portfolio turnover necessarily results in greater transaction costs, such as brokerage commissions, which the Fund must pay, and short-term capital gains (or losses) to investors.  Greater transaction costs may reduce Fund performance.  Distributions to shareholders of short-term capital gains are taxed as ordinary income under current federal income tax laws.

n Mid-Cap Company Risk – There is a risk that the securities of mid-capitalization companies may have limited liquidity and greater price volatility than securities of large- capitalization companies, which can negatively affect the Fund’s ability to sell these securities at quoted market prices.

The Fund is a suitable investment only for those investors who have long-term investment goals such as investing for retirement.  If you are uncomfortable with an investment that will fluctuate in value, the Fund may not be the right choice for you.

Performance

The bar chart and table that follow provide some indication of the risks of investing in Brandywine Fund by showing changes in the Fund’s performance from year to year and by showing how its average annual returns over 1, 5 and 10 years compare with those of the S&P 500®, Russell 3000® and Russell 3000® Growth Indexes.   For a description of the indexes, please see “Index Descriptions” on page 17.   Updated performance is available on the Fund’s website , www.brandywinefunds.com.  Please be aware that past performance (before and after taxes) is not necessarily an indication of future performance.

Brandywine Fund, Inc. (Total return per calendar year)

Note:  During the 10-year period shown on the bar chart, the Fund’s highest total return for a quarter was 20.62% (quarter ended December 31, 2010) and the lowest total return for a quarter was -24.98% (quarter ended September 30, 2011).

Average Annual Total Returns (for the periods ended December 31, 2012 )

Average Annual Returns	Average Annual Returns, 1 Year	Average Annual Returns, 5 Years	Average Annual Returns, 10 Years
BRANDYWINE FUND	5.25%	(8.39%)	4.03%
BRANDYWINE FUND After Taxes on Distributions	5.25%	(8.42%)	3.72%
BRANDYWINE FUND After Taxes on Distributions and Sale of Fund shares	3.41%	(6.94%)	3.51%
BRANDYWINE FUND S&P 500 Index (reflects no deduction for fees, expenses or taxes)	16.00%	1.66%	7.10%
BRANDYWINE FUND Russell 3000 Index (reflects no deduction for fees, expenses or taxes)	16.42%	2.04%	7.68%
BRANDYWINE FUND Russell 3000 Growth Index (reflects no deduction for fees, expenses or taxes)	15.21%	3.15%	7.69%

The after-tax returns above were calculated using the historical highest individual federal marginal income tax rates and do not reflect the impact of state and local taxes.  Actual after-tax returns depend on an investor’s tax situation and may differ from those shown.   After -tax returns shown are not relevant to investors who hold their Fund shares through tax-deferred arrangements, such as 401(k) plans or individual retirement accounts.  The Fund’s “Return after taxes on distributions and sale of Fund shares” may be higher than its returns before taxes and after taxes on distributions because it may include a tax benefit resulting from the capital losses that would have been incurred.

XML

Document and Entity Information	0 Months Ended
	Sep. 30, 2012
Risk/Return:
Document Type	485BPOS
Document Period End Date	Sep. 30, 2012
Registrant Name	BRANDYWINE FUND INC
Central Index Key	0000780253
Amendment Flag	false
Document Creation Date	Jan. 31, 2013
Document Effective Date	Jan. 31, 2013
Prospectus Date	Jan. 31, 2013
BRANDYWINE FUND | BRANDYWINE FUND | BRANDYWINE FUND
Risk/Return:
Trading Symbol	BRWIX