UNITED STATES
	SECURITIES AND EXCHANGE COMMISSION
	Washington, D.C. 20549
	FORM N-Q
QUARTERLY SCHEDULE OF PORTFOLIO HOLDINGS OF REGISTERED MANAGEMENT
	INVESTMENT COMPANY
Investment Company Act file number 811-5718
DREYFUS TREASURY PRIME CASH MANAGEMENT
	(Exact name of Registrant as specified in charter)
	c/o The Dreyfus Corporation
	200 Park Avenue
	New York, New York 10166
	(Address of principal executive offices) (Zip code)
	Mark N. Jacobs, Esq.
	200 Park Avenue
	New York, New York 10166
	(Name and address of agent for service)
Registrant's telephone number, including area code: (212) 922-6000
Date of fiscal year end:	1/31
Date of reporting period:	10/31/04

FORM N-Q

Item 1. Schedule of Investments.

Dreyfus Treasury Prime Cash Management
Statement of Investments
10/31/2004 (Unaudited)
	Annualized
	Yield on
	Date of	Principal
U.S. Treasury Bills - 75.2%	Purchase (%)	Amount ($)	Value ($)
11/4/2004	1.49	458,635,000	458,578,267
11/12/2004	1.56	26,097,000	26,084,590
11/26/2004	1.55	79,627,000	79,541,583
12/9/2004	1.61	200,000,000	199,662,222
12/23/2004	1.54	180,000,000	179,602,200
12/30/2004	1.71	300,000,000	299,164,167
1/27/2005	1.87	150,000,000	149,323,937
2/10/2005	1.70	125,000,000	124,407,326
3/10/2005	1.85	200,000,000	198,688,500
4/28/2005	2.06	150,000,000	148,487,000
Total U.S. Treasury Bills
(cost $1,863,539,792)			1,863,539,792
U.S. Treasury Notes - 20.5%
5.875, 11/15/2004	1.61	20,000,000.00	20,031,869
7.875%, 11/15/2004	1.59	85,000,000.00	85,200,014
2.00%, 11/30/2004	1.37	100,000,000.00	100,047,324
1.75%, 12/31/2004	1.69	150,000,000.00	150,003,821
6.50%, 5/15/2005	1.91	150,000,000.00	153,552,643
Total U.S. Treasury Notes
(cost $508,835,671)			508,835,671
Total Investments (cost $2,372,375,463)		95.7%	2,372,375,463
Cash and Receivables (Net)		4.3%	107,843,028
Net Assets		100.0%	2,480,218,491

Securities valuation policies and other investment related disclosures are hereby incorporated by reference
to the annual and semi annual reports previously filed with the Securities and Exchange Commission on Form N-CSR.

Item 2. Controls and Procedures.

(a) The Registrant's principal executive and principal financial officers have concluded, based on their evaluation of the Registrant's disclosure controls and procedures as of a date within 90 days of the filing date of this report, that the Registrant's disclosure controls and procedures are reasonably designed to ensure that information required to be disclosed by the Registrant on Form N-Q is recorded, processed, summarized and reported within the required time periods and that information required to be disclosed by the Registrant in the reports that it files or submits on Form N-Q is accumulated and communicated to the Registrant's management, including its principal executive and principal financial officers, as appropriate to allow timely decisions regarding required disclosure.

(b) There were no changes to the Registrant's internal control over financial reporting that occurred during the Registrant's most recently ended fiscal quarter that have materially affected, or are reasonably likely to materially affect, the Registrant's internal control over financial reporting.

Item 3. Exhibits.

(a) Certifications of principal executive and principal financial officers as required by Rule 30a-2(a) under the Investment Company Act of 1940.

SIGNATURES

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, the Registrant has duly caused this Report to be signed on its behalf by the undersigned, thereunto duly authorized.

DREYFUS TREASURY PRIME CASH MANAGEMENT

By:	/s/ Stephen E. Canter
	Stephen E. Canter
	President
Date:	December 15, 2004

Pursuant to the requirements of the Securities Exchange Act of 1934 and the Investment Company Act of 1940, this Report has been signed below by the following persons on behalf of the Registrant and in the capacities and on the dates indicated.

By:	/s/ Stephen E. Canter
	Stephen E. Canter
	Chief Executive Officer
Date:	December 15, 2004
By:	/s/ James Windels
James Windels
	Chief Financial Officer
Date:	December 15, 2004

EXHIBIT INDEX

(a) Certifications of principal executive and principal financial officers as required by Rule 30a-2(a) under the Investment Company Act of 1940. (EX-99.CERT)