DACXX Dreyfus Cash Mgmt Administrative Shs (MM)

000 B000000 01/31/2012
000 C000000 0000759667
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 U
001 A000000 DREYFUS CASH MANAGEMENT
001 B000000 811-4175
001 C000000 2129226837
002 A000000 200 PARK AVENUE
002 B000000 NEW YORK
002 C000000 NY
002 D010000 10166
002 D020000 0144
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
007 C010200 2
007 C010300 3
007 C010400 4
007 C010500 5
007 C010600 6
007 C010700 7
007 C010800 8
007 C010900 9
007 C011000 10
008 A000001 THE DREYFUS CORPORATION
008 B000001 A
008 C000001 801-8147
008 D010001 NEW YORK
008 D020001 NY
008 D030001 10166
011 A000001 MBSC SECURITIES CORPORATION
011 B000001 8-13801
011 C010001 NEW YORK
011 C020001 NY
011 C030001 10166
012 A000001 DREYFUS TRANSFER, INC.
012 B000001 85-11312
012 C010001 NEW YORK
012 C020001 NY
012 C030001 10166
013 A000001 ERNST & YOUNG LLP
013 B010001 NEW YORK

013 B020001 NY
013 B030001 10036
014 A000001 BNY CONVERGEX EXECTUION SOLUTIONS, LLC
014 B000001 8-46838
014 A000002 BNY MELLON CAPITAL MARKETS, LLC
014 B000002 8-35255
014 A000003 BNY MELLON SECURITIES LLC
014 B000003 8-51710
014 A000004 BNY MELLON DISTRIBUTORS INC.
014 B000004 8-45467
014 A000005 EZE CASTLE TRANSACTION SERVICES LLC
014 B000005 8-66577
014 A000006 G-TRADE SERVICES, LLC
014 B000006 8-67304
014 A000007 MGI FUNDS DISTRIBUTORS, INC.
014 B000007 8-46960
014 A000008 MBSC SECURITIES CORPORATION
014 B000008 8-13801
014 A000009 PERSHING ADVISOR SOLUTIONS LLC
014 B000009 8-47425
014 A000010 PERSHING LLC
014 B000010 8-17574
014 A000011 WESTMINSTER RESEARCH ASSOCIATES LLC
014 B000011 8-28900
014 A000012 NORTHPOINT TRADING PARTNERS, LLC
014 B000012 8-67289
014 A000013 BB&T AM DISTRIBUTORS, INC
014 B000013 8-52396
014 A000014 FAIRHOLME DISTRIBUTORS, INC.
014 B000014 8-68327
015 A000001 THE BANK OF NEW YORK MELLON
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E030001 X
018 000000 Y
019 A000000 Y
019 B000000 161
019 C000000 DREYFUSFAM
020 C000001 0
020 C000002 0
020 C000003 0
020 C000004 0
020 C000005 0
020 C000006 0
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 0

022 A000001 BGC PARTNERS INC.
022 B000001 13-4063515
022 C000001 713646000
022 D000001 0
022 A000002 TULLETT PREBON FINANCIAL SERVICES LLC
022 B000002 13-3721275
022 C000002 588561939
022 D000002 0
022 A000003 BANK OF NOVA SCOTIA
022 B000003 13-4941099
022 C000003 173374682
022 D000003 0
022 A000004 DEUTSCHE BANK SECURITIES INC
022 B000004 13-2730828
022 C000004 148292017
022 D000004 0
022 A000005 RBC CAPITAL MARKETS CORP.
022 B000005 41-1228350
022 C000005 141543835
022 D000005 0
022 A000006 RBS SECURITIES INC.
022 B000006 13-3172275
022 C000006 126971807
022 D000006 0
022 A000007 HSBC SECURITIES (USA) INC.
022 B000007 13-2650272
022 C000007 110010100
022 D000007 0
022 A000008 BANK OF AMERICA NA
022 B000008 94-1687665
022 C000008 100666980
022 D000008 700014
022 A000009 CITIGROUP INC.
022 B000009 52-1568099
022 C000009 100687864
022 D000009 0
022 A000010 J.P. MORGAN SECURITIES INC.
022 B000010 13-3299429
022 C000010 94496443
022 D000010 0
023 C000000 2684365905
023 D000000 6020904
024 000000 Y
025 A000001 BANK OF AMERICA NA
025 B000001 94-1687665
025 C000001 D
025 D000001 1579000
025 A000002 RBC CAPITAL MARKETS CORP.
025 B000002 41-1228350
025 C000002 D
025 D000002 1081000

025 A000003 J.P. MORGAN SECURITIES INC.
025 B000003 13-3299429
025 C000003 D
025 D000003 750000
025 A000004 BANK OF NOVA SCOTIA
025 B000004 13-4941099
025 C000004 D
025 D000004 750000
025 A000005 DEUTSCHE BANK SECURITIES INC.
025 B000005 13-2730828
025 C000005 D
025 D000005 200000
025 A000006 CITIGROUP INC.
025 B000006 52-1568099
025 C000006 D
025 D000006 150000
025 A000007 HSBC SECURITIES (USA) INC.
025 B000007 13-2650272
025 C000007 D
025 D000007 400000
025 D000008 0
026 A000000 N
026 B000000 Y
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 Y
027 000000 Y
028 A010000 13958330
028 A020000 40
028 A030000 0
028 A040000 12693375
028 B010000 7324785
028 B020000 62
028 B030000 0
028 B040000 9240192
028 C010000 7191568
028 C020000 160
028 C030000 0
028 C040000 6606525
028 D010000 9530517
028 D020000 157
028 D030000 0
028 D040000 8613690
028 E010000 10548864
028 E020000 149
028 E030000 0
028 E040000 10393583

028 F010000 8665208
028 F020000 186
028 F030000 0
028 F040000 8925599
028 G010000 57219274
028 G020000 754
028 G030000 0
028 G040000 56472964
028 H000000 0
029 000000 N
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
034 000000 N
035 000000 0
036 B000000 0
037 000000 N
038 000000 0
039 000000 N
040 000000 Y
041 000000 Y
042 A000000 0
042 B000000 0
042 C000000 100
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 11986
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.200
048 A010000 0
048 A020000 0.000
048 B010000 0
048 B020000 0.000
048 C010000 0
048 C020000 0.000
048 D010000 0
048 D020000 0.000
048 E010000 0
048 E020000 0.000
048 F010000 0
048 F020000 0.000

048 G010000 0
048 G020000 0.000
048 H010000 0
048 H020000 0.000
048 I010000 0
048 I020000 0.000
048 J010000 0
048 J020000 0.000
048 K010000 0
048 K020000 0.000
049 000000 N
050 000000 N
051 000000 N
052 000000 N
053 A000000 Y
053 B000000 Y
053 C000000 N
054 A000000 Y
054 B000000 Y
054 C000000 Y
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 Y
054 H000000 N
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 Y
054 M000000 Y
054 N000000 N
054 O000000 Y
055 A000000 Y
055 B000000 N
056 000000 Y
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 10000000
062 A000000 Y
062 B000000 1.6
062 C000000 8.6
062 D000000 18.9
062 E000000 0.0
062 F000000 32.6
062 G000000 2.9
062 H000000 0.0
062 I000000 19.3
062 J000000 16.1

062 K000000 0.0
062 L000000 0.0
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 0.0
062 Q000000 0.0
062 R000000 0.0
063 A000000 29
063 B000000 0.0
064 A000000 Y
064 B000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 Y
070 B010000 N
070 B020000 N
070 C010000 N
070 C020000 N
070 D010000 N
070 D020000 N
070 E010000 N
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 N
070 G020000 N
070 H010000 N
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 Y
070 K010000 Y
070 K020000 N
070 L010000 Y
070 L020000 Y
070 M010000 N
070 M020000 N
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 N
070 P010000 Y
070 P020000 N
070 Q010000 N
070 Q020000 N

070 R010000 N
070 R020000 N
071 A000000 0
071 B000000 0
071 C000000 0
071 D000000 0
072 A000000 12
072 B000000 74797
072 C000000 0
072 D000000 0
072 E000000 0
072 F000000 56960
072 G000000 0
072 H000000 0
072 I000000 562
072 J000000 855
072 K000000 0
072 L000000 122
072 M000000 162
072 N000000 179
072 O000000 0
072 P000000 0
072 Q000000 0
072 R000000 41
072 S000000 59
072 T000000 11986
072 U000000 0
072 V000000 37
072 W000000 437
072 X000000 71400
072 Y000000 13984
072 Z000000 17381
072AA000000 263
072BB000000 258
072CC010000 0
072CC020000 0
072DD010000 17442
072DD020000 80
072EE000000 0
073 A010000 0.0000
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 18130
074 B000000 5226000
074 C000000 22400670
074 D000000 0
074 E000000 0
074 F000000 0
074 G000000 0
074 H000000 0

074 I000000 0
074 J000000 0
074 K000000 0
074 L000000 5892
074 M000000 151
074 N000000 27650843
074 O000000 0
074 P000000 4929
074 Q000000 0
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 6650
074 S000000 0
074 T000000 27639264
074 U010000 22695268
074 U020000 4944014
074 V010000 0.00
074 V020000 0.00
074 W000000 1.0001
074 X000000 3078
074 Y000000 0
075 A000000 28479974
075 B000000 0
076 000000 0.00
077 A000000 Y
077 B000000 Y
077 M000000 Y
077 Q010000 Y
080 A000000 NATIONAL UNION FIRE INS. CO. OF PITTSBURGH
080 B000000 FEDERAL INSURANCE COMPANY
080 C000000 115000
081 A000000 Y
081 B000000 187
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
SIGNATURE JOHN B. HAMMALIAN
TITLE VICE PRESIDENT