<PAGE> PAGE 1
000 B000000 12/31/97
000 C000000 0000811858
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 3.0
000 J000000 U
001 A000000 DREYFUS 100% U.S. TREASURY SHORT TERM FUND
001 B000000 811-5077
001 C000000 2129226822
002 A000000 200 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10166
003 000000 N
004 000000 N
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018 000000 Y
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020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0
022 A000001 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000001 13-5674085
022 C000001 644515
022 D000001 592085
022 A000002 G.X. CLARKE & CO.
022 B000002 13-2969143
022 C000002 262013
022 D000002 258965
022 A000003 GOLDMAN, SACHS & CO.
022 B000003 13-5108880
022 C000003 148513
022 D000003 101072
022 A000004 GREENWICH PARTNERS, INC.
022 B000004 13-3176013
<PAGE> PAGE 2
022 C000004 40499
022 D000004 125628
022 A000005 ARBOR TRADING GROUP, INC.
022 B000005 36-3540782
022 C000005 98229
022 D000005 43385
022 A000006 DEUTSCHE BANK SECURITIES CORPORATION
022 B000006 13-2730828
022 C000006 48702
022 D000006 37475
022 A000007 J.P. MORGAN SECURITIES INC.
022 B000007 13-3224016
022 C000007 29479
022 D000007 29903
022 A000008 BEAR, STEARNS & CO. INC.
022 B000008 13-3299429
022 C000008 6006
022 D000008 46300
022 A000009 DONALDSON, LUFKIN & JENRETTE SECURITIES CORP.
022 B000009 13-2741729
022 C000009 0
022 D000009 24861
022 A000010 SBC CAPITAL MARKETS, INC.
022 B000010 13-3498485
022 C000010 20914
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<PAGE> PAGE 3
028 F030000 0
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055 A000000 Y
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<PAGE> PAGE 4
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<PAGE> PAGE 5
074 Y000000 0
075 A000000 0
075 B000000 181121
076 000000 0.00
077 A000000 Y
077 B000000 Y
078 000000 N
080 A000000 NATIONAL UNION FIRE INS. CO. OF PITTSBURGH,PA
080 B000000 VIGILANT INSURANCE COMPANY
080 C000000 125
081 A000000 Y
081 B000000 171
082 A000000 N
082 B000000 0
083 A000000 N
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084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
SIGNATURE MICHAEL PETRUCELLI
TITLE ASSISTANT TREASURER
<TABLE> <S> <C>
<ARTICLE> 6
<CIK> 0000811858
<NAME> DREYFUS 100% U.S. TREASURY SHORT TERM FUND
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</TABLE>
