SCHEDULE 13D  
  
Amendment No. 8  
Electro Scientific Industries  
common stock   
Cusip # 285229100  
Filing Fee: No  
 
 
Cusip # 285229100  
Item 1:	Reporting Person - FMR Corp. - (Tax ID:  04-2507163)  
Item 4:	PF  
Item 6:	Commonwealth of Massachusetts  
Item 7:	29,400  
Item 8:	None  
Item 9:	821,250  
Item 10:	None  
Item 11:	821,250  
Item 13:	9.98%  
Item 14:	HC  
 
 
PREAMBLE  
  
	The filing of this Schedule 13D is not, and should not be deemed to be,  
an admission that such Schedule 13D is required to be filed.  See the  
discussion under Item 2.  
  
Item 1.	Security and Issuer.  
  
	This statement relates to shares of the common stock, $0.00 par value  
(the "Shares") of Electro Scientific Industries, a Oregon corporation (the  
"Company").  The principal executive offices of the Company are located at  
13900 NW Science Park Drive, Portland, OR 97229-5497.  
  
Item 2.	Identity and Background.  
  
	Item 2 is amended as follows:  
  
	This statement is being filed by FMR Corp., a Massachusetts Corporation  
("FMR").  FMR is a holding company one of whose principal assets is the  
capital stock of a wholly-owned subsidiary, Fidelity Management & Research  
Company ("Fidelity"), which is also a Massachusetts corporation.  Fidelity is  
an investment advisor which is registered under Section 203 of the Investment  
Advisors Act of 1940 and which provides investment advisory services to more  
than 30 investment companies which are registered under Section 8 of the  
Investment Company Act of 1940 and serves as investment advisor to certain  
other funds which are generally offered to limited groups of investors (the  
"Fidelity Funds").  Fidelity Management Trust Company ("FMTC"), a wholly-owned  
subsidiary of FMR Corp. and a bank as defined in Section 3(a)(6) of the  
Securities Exchange Act of 1934, serves as trustee or managing agent for  
various private investment accounts, primarily employee benefit plans and  
serves as investment adviser to certain other funds which are generally  
offered to limited groups of investors (the "Accounts").  Various directly or  
indirectly held subsidiaries of FMR are also engaged in investment management,  
venture capital asset management, securities brokerage, transfer and  
shareholder servicing and real estate development.  The principal offices of  
FMR, Fidelity, and FMTC are located at 82 Devonshire Street, Boston,  
Massachusetts 02109.  
  
	Edward C. Johnson 3d owns 24.9% of the outstanding voting common stock  
of FMR.  Mr. Johnson 3d is Chairman of FMR Corp.  The business address and  
principal occupation of Mr. Johnson 3d is set forth in Schedule A hereto.  
  
	The Shares to which this statement relates are owned directly by ten of  
the Fidelity Funds, eight of the Accounts.  
  
	The name, residence or business address, principal occupation or  
employment and citizenship of each of the executive officers and directors of  
FMR are set forth in Schedule A hereto.  
  
	Within the past five years, none of the persons named in this Item 2 or  
listed on Schedule A has been convicted in any criminal proceeding (excluding  
traffic violations or similar misdemeanors) or has been a party to any civil  
proceeding and as a result thereof was or is subject to any judgment, decree  
or final order enjoining future violations of, or prohibiting or mandating  
activities subject to federal or state securities laws or finding any  
violations with respect to such laws.  
  
Item 3.	Source and Amount of Funds or Other Consideration.  
  
	Item 3 is amended as follows:  
  
	The Fidelity Funds which own or owned Shares purchased in the aggregate  
1,984,530 Shares for cash in the amount of approximately $29,979,013,  
including brokerage commissions.  The Fidelity Funds used their own assets in  
making such purchase and no part of the purchase price is represented by  
borrowed funds.  Proceeds from 1,227,680 Shares sold aggregated approximately  
$21,736,679.  The attached Schedule B sets forth Shares purchased and/or sold  
since April 17, 1995.  
  
	The Accounts of FMTC which own or owned Shares purchased in the  
aggregate 71,900 Shares for cash in the amount of approximately $1,602,161,  
including brokerage commissions.  The Accounts used their own assets in making  
such purchase and no part of the purchase price is represented by borrowed  
funds.  Proceeds from 7,500 Shares sold aggregated approximately $153,673.   
The attached Schedule B sets forth Shares purchased and/or sold since April  
17, 1995.  
  
Item 4.	Purpose of Transaction.  
  
	Item 4 is amended as follows:  
  
	The purpose of Fidelity and FMTC in having the Fidelity Funds and the  
Accounts purchase Shares is to acquire an equity interest in the Company in  
pursuit of specified investment objectives established by the Board of  
Trustees of the Fidelity Funds and by the investors in the Accounts.  
  
	Fidelity and FMTC, respectively, may continue to have the Fidelity Funds  
and the Accounts purchase Shares subject to a number of factors, including,  
among others, the availability of Shares of sale at what they consider to be  
reasonable prices and other investment opportunities that may be available to  
the Fidelity Funds and Accounts.  
  
	Fidelity and FMTC, respectively, intend to review continuously the  
equity position of the Fidelity Funds and Accounts in the Company.  Depending  
upon future evaluations of the business prospects of the Company and upon  
other developments, including, but not limited to, general economic and  
business conditions and money market and stock market conditions, Fidelity may  
determine to cease making additional purchases of Shares or to increase or  
decrease the equity interest in the Company by acquiring additional Shares, or  
by disposing of all or a portion of the Shares.  
  
	Neither Fidelity nor FMTC has any present plan or proposal which relates  
to or would result in (i) an extraordinary corporate transaction, such as a  
merger, reorganization, liquidation, or sale of transfer of a material amount  
of assets involving the Company or any of its subsidiaries, (ii) any change in  
the Company's present Board of Directors or management, (iii) any material  
changes in the Company's present capitalization or dividend policy or any  
other material change in the Company's business or corporate structure, (iv)  
any change in the Company's charter or by-laws, or (v) the Company's common  
stock becoming eligible for termination of its registration pursuant to  
Section 12(g)(4) of the 1934 Act.  
  
Item 5.	Interest in Securities of Issuer.  
  
	Item 5 is amended as follows:  
  
	FMR, Fidelity, and FMTC, beneficially own all 821,250 Shares.  
  
	(a)	FMR beneficially owns, through Fidelity, as investment advisor to  
the Fidelity Funds, 756,850 Shares, or approximately 9.20% of the outstanding  
Shares of the Company, and through FMTC, the managing agent for the Accounts,  
64,400 Shares, or approximately 0.78% of the outstanding Shares of the  
Company.  Neither FMR, Fidelity, FMTC, nor any of its affiliates nor, to the  
best knowledge of FMR, any of the persons name in Schedule A hereto,  
beneficially owns any other Shares.  The combined holdings of FMR, Fidelity,  
and FMTC, are 821,250 Shares, or approximately 9.98% of the outstanding Shares  
of the Company.  
  
	(b)	FMR, through is control of Fidelity, investment advisor to the  
Fidelity Funds, and the Funds each has sole power to dispose of the Shares.   
Neither FMR nor Mr. Johnson has the sole power to vote or direct the voting of  
the 756,850 Shares owned directly by the Fidelity Funds, which power resides  
with the Funds' Boards of Trustees.  Fidelity carries out the voting of the  
Shares under written guidelines established by the Funds' Board of Trustees.   
FMR, through its control of FMTC, investment manager to the Accounts, and the  
Accounts each has sole dispositive power over 64,400 Shares and sole power to  
vote or to direct the voting of 29,400 Shares, and no power to vote or to  
direct the voting of 35,000 Shares owned by the Accounts.    
  
	(c)	Except as set forth in Schedule B, neither FMR, or any of its  
affiliates, nor, to the best knowledge of FMR, any of the persons named in  
Schedule A hereto has effected any transaction in Shares during the past sixty  
(60) days.  
  
Item 6.	Contract, Arrangements, Understandings or Relationships With  
Respect to Securities of the Issuer.  
  
	Neither FMR nor any of its affiliates nor, to the best knowledge of FMR,  
any of the persons named in Schedule A hereto has any joint venture, finder's  
fee, or other contract or arrangement with any person with respect to any  
securities of the Company.  
  
Item 7.	Material to be Filed as Exhibits.  
  
	Not Applicable.  
  
	This statement speaks as of its date, and no inference should be drawn  
that no change has occurred in the facts set forth herein after the date  
hereof.  
  
Signature  
  
	After reasonable inquiry and to the best of my knowledge and belief, I  
certify that the information set forth in this statement is true, complete and  
correct.  
  
						FMR Corp.  
  
  
  
DATE:	June 22, 1995	By:	/s/Arthur Loring			  
	Arthur Loring  
	Vice President-Legal  
  
  
 
 
SCHEDULE A  
  
	The name and present principal occupation or employment of each  
executive officer and director of FMR Corp. are set forth below.  The business  
address of each person is 82 Devonshire Street, Boston, Massachusetts 02109,  
and the address of the corporation or organization in which such employment is  
conducted is the same as his business address.  All of the persons listed  
below are U.S. citizens.  
  
POSITION WITH  
									PRINCIPAL  
NAME	FMR CORP.	OCCUPATION  
  
Edward C. Johnson 3d	President,	Chairman of the  
Director, CEO	Board and CEO, FMR  
Chairman &  
Mng. Director  
  
J. Gary Burkhead	Director	President-Fidelity  
  
Caleb Loring, Jr.	Director,	Director, FMR  
	Mng. Director  
  
James C. Curvey	Director, 	Sr. V.P., FMR  
	Sr. V.P.  
  
William L. Byrnes	Vice Chairman	Vice Chairman, FIL  
Director & Mng.  
Director  
  
Robert C. Pozen	Sr. V.P. & Gen'l	Sr. V.P. & Gen'l  
	Counsel	Counsel, FMR  
  
Mark Peterson	Exec.	Exec.  
V.P.-Management	V.P.-Management  
Resources	Resources, FMR  
  
Denis McCarthy	Sr. Vice Pres. - 	Vice Pres., Chief  
Chief Financial	Financial Officer,  
Officer	FMR  
  
 
 
SCHEDULE B  
  
  
Electro Scientific Industries  
  
Three Fidelity Funds purchased Shares since April 17, 1995 at the dates and at  
the prices set forth below.  The transactions were made for cash in open  
market transactions or with other investment companies with the same or an  
affiliated investment advisor.  
  
	DATE	SHARES	PRICE  
  
	06-01-95	20,000	25.30  
	06-02-95	20,000	25.56  
	06-05-95	7,500	28.50  
	06-15-95	75,000	28.00  
  
 
 
SCHEDULE B  
  
  
Electro Scientific Industries  
  
One Fidelity Fund sold Shares since April 17, 1995 at the dates and at the  
prices set forth below.  The transactions were made for cash in open market  
transactions or with other investment companies with the same or an affiliated  
investment advisor.  
  
	DATE	SHARES	PRICE  
  
	05-30-95	10,000	24.94  
	05-31-95	16,000	24.29