PAGE 1
000 B000000 02/29/2012
000 C000000 1051003
000 D000000 N
000 E000000 NF
000 F000000 Y
000 G000000 N
000 H000000 N
000 I000000 6.1
000 J000000 A
001 A000000 BLACKROCK DEBT STRATEGIES FUND, INC.
001 B000000 811-08603
001 C000000 8004417762
002 A000000 100 BELLEVUE PARKWAY
002 B000000 WILMINGTON
002 C000000 DE
002 D010000 19809
003 000000 N
004 000000 N
005 000000 N
006 000000 N
007 A000000 N
007 B000000 0
007 C010100 1
008 A000001 BLACKROCK ADVISORS, LLC
008 B000001 A
008 C000001 801-47710
008 D010001 WILMINGTON
008 D020001 DE
008 D030001 19809
008 A000002 BLACKROCK FINANCIAL MANAGEMENT, INC.
008 B000002 S
008 C000002 801-48433
008 D010002 NEW YORK
008 D020002 NY
008 D030002 10055
012 A000001 COMPUTERSHARE TRUST COMPANY, N.A.
012 B000001 85-11340
012 C010001 CANTON
012 C020001 MA
012 C030001 02021
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 BOSTON
013 B020001 MA
013 B030001 02116
014 A000001 BLACKROCK CAPITAL MARKETS, LLC
014 B000001 8-67827
014 A000002 BLACKROCK EXECUTION SERVICES
014 B000002 8-48719
014 A000003 BLACKROCK INVESTMENTS, LLC
014 B000003 8-48436
014 A000004 HARRIS WILLIAMS LLC
PAGE 2
014 B000004 8-53380
014 A000005 PNC CAPITAL MARKETS, INC.
014 B000005 8-32493
014 A000006 PNC INVESTMENTS LLC
014 B000006 8-66195
015 A000001 THE BANK OF NEW YORK MELLON
015 B000001 C
015 C010001 NEW YORK
015 C020001 NY
015 C030001 10286
015 E010001 X
015 A000002 J.P. MORGAN CHASE BANK
015 B000002 S
015 C010002 NEW YORK
015 C020002 NY
015 C030002 10017
015 E010002 X
015 A000003 CIBC MELLON TRUST CO
015 B000003 S
015 C010003 CANADA
015 D010003 CANADA
015 E040003 X
015 A000004 BNY MELLON SA/NV ASSET SERVICING
015 B000004 S
015 C010004 GERMANY
015 D010004 GERMANY
015 E040004 X
015 A000005 THE BANK OF NEW YORK MELLON
015 B000005 S
015 C010005 IRELAND
015 D010005 IRELAND
015 E040005 X
015 A000006 THE BANK OF NEW YORK MELLON
015 B000006 S
015 C010006 UNITED KINGDOM
015 D010006 UNITED KINGDOM
015 E040006 X
015 A000007 DEUTSCHE BANK AG
015 B000007 S
015 C010007 LONDON
015 D010007 UNITED KINGDOM
015 E040007 X
015 A000008 BNP PARIBAS SECURITIES SERVICES S.A.
015 B000008 S
015 C010008 FRANCE
015 D010008 FRANCE
015 E040008 X
018 000000 Y
019 A000000 Y
019 B000000 287
019 C000000 BLKRKADVSR
PAGE 3
020 A000001 JONES & ASSOCIATES, INC.
020 C000001 8
020 A000002 HUNTER SECURITIES CORP.
020 C000002 0
020 A000003 DAHLMAN ROSE & COMPANY, LLC
020 B000003 13-3957463
020 C000003 0
020 A000004 JANNEY MONTGOMERY SCOTT LLC
020 B000004 23-0731260
020 C000004 0
021 000000 8
022 A000001 BLK LIQUIDITY FUNDS, TEMPFUND, INSTIT. CLASS
022 B000001 52-0983343
022 C000001 196984
022 D000001 113908
022 A000002 MORGAN STANLEY & CO. INCORPORATED
022 B000002 13-2655998
022 C000002 76493
022 D000002 29514
022 A000003 J.P. MORGAN SECURITIES INC.
022 B000003 13-3299429
022 C000003 72095
022 D000003 26445
022 A000004 CREDIT SUISSE SECURITIES (USA) L.L.C.
022 B000004 13-5659485
022 C000004 55333
022 D000004 30344
022 A000005 BANC OF AMERICA SECURITIES LLC
022 B000005 56-2058405
022 C000005 29664
022 D000005 31987
022 A000006 DEUTSCHE BANK SECURITIES INC
022 B000006 13-2730828
022 C000006 30924
022 D000006 17468
022 A000007 CITIGROUP GLOBAL MARKETS INC
022 B000007 11-2418191
022 C000007 27498
022 D000007 16950
022 A000008 BARCLAYS BANK PLC
022 B000008 05-0346412
022 C000008 13747
022 D000008 24472
022 A000009 GOLDMAN SACHS & CO
022 B000009 13-5108880
022 C000009 19830
022 D000009 9066
022 A000010 WELLS FARGO & CO
022 B000010 41-0449260
022 C000010 9117
022 D000010 5515
PAGE 4
023 C000000 570473
023 D000000 341980
024 000000 N
026 A000000 N
026 B000000 N
026 C000000 N
026 D000000 Y
026 E000000 N
026 F000000 N
026 G010000 N
026 G020000 N
026 H000000 N
027 000000 N
028 A010000 0
028 A020000 0
028 A030000 0
028 A040000 0
028 B010000 0
028 B020000 0
028 B030000 0
028 B040000 0
028 C010000 0
028 C020000 0
028 C030000 0
028 C040000 0
028 D010000 0
028 D020000 0
028 D030000 0
028 D040000 0
028 E010000 0
028 E020000 0
028 E030000 0
028 E040000 0
028 F010000 0
028 F020000 0
028 F030000 0
028 F040000 0
028 G010000 0
028 G020000 0
028 G030000 0
028 G040000 0
028 H000000 0
030 A000000 0
030 B000000 0.00
030 C000000 0.00
031 A000000 0
031 B000000 0
032 000000 0
033 000000 0
035 000000 0
036 B000000 0
PAGE 5
038 000000 0
042 A000000 0
042 B000000 0
042 C000000 0
042 D000000 0
042 E000000 0
042 F000000 0
042 G000000 0
042 H000000 0
043 000000 0
044 000000 0
045 000000 Y
046 000000 N
047 000000 Y
048 000000 0.600
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 N
054 D000000 N
054 E000000 N
054 F000000 N
054 G000000 N
PAGE 6
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
055 A000000 Y
055 B000000 Y
056 000000 Y
057 000000 N
058 A000000 N
059 000000 Y
060 A000000 Y
060 B000000 Y
061 000000 0
062 A000000 Y
062 B000000 0.0
062 C000000 0.0
062 D000000 0.0
062 E000000 0.0
062 F000000 0.0
062 G000000 0.0
062 H000000 0.0
062 I000000 0.0
062 J000000 0.0
062 K000000 0.0
062 L000000 2.1
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 56.7
062 Q000000 73.9
062 R000000 2.7
063 A000000 0
063 B000000 6.9
064 A000000 N
064 B000000 Y
065 000000 N
066 A000000 N
067 000000 N
068 A000000 N
068 B000000 N
069 000000 N
070 A010000 Y
070 A020000 N
070 B010000 N
070 B020000 N
070 C010000 Y
070 C020000 N
070 D010000 N
PAGE 7
070 D020000 N
070 E010000 Y
070 E020000 N
070 F010000 N
070 F020000 N
070 G010000 Y
070 G020000 N
070 H010000 Y
070 H020000 N
070 I010000 N
070 I020000 N
070 J010000 Y
070 J020000 N
070 K010000 Y
070 K020000 Y
070 L010000 Y
070 L020000 Y
070 M010000 Y
070 M020000 Y
070 N010000 Y
070 N020000 N
070 O010000 Y
070 O020000 Y
070 P010000 Y
070 P020000 Y
070 Q010000 Y
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000 356676
071 B000000 350852
071 C000000 592394
071 D000000 59
072 A000000 12
072 B000000 41451
072 C000000 10
072 D000000 0
072 E000000 0
072 F000000 3508
072 G000000 104
072 H000000 0
072 I000000 89
072 J000000 53
072 K000000 0
072 L000000 66
072 M000000 57
072 N000000 38
072 O000000 0
072 P000000 1372
072 Q000000 0
072 R000000 220
PAGE 8
072 S000000 0
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 519
072 X000000 6026
072 Y000000 2
072 Z000000 35437
072AA000000 0
072BB000000 7630
072CC010000 0
072CC020000 9094
072DD010000 34943
072DD020000 0
072EE000000 0
073 A010000 0.3200
073 A020000 0.0000
073 B000000 0.0000
073 C000000 0.0000
074 A000000 138
074 B000000 0
074 C000000 0
074 D000000 582567
074 E000000 0
074 F000000 8280
074 G000000 0
074 H000000 0
074 I000000 12748
074 J000000 11699
074 K000000 0
074 L000000 6183
074 M000000 535
074 N000000 622150
074 O000000 29520
074 P000000 263
074 Q000000 145000
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 1543
074 S000000 0
074 T000000 445824
074 U010000 107967
074 U020000 0
074 V010000 4.13
074 V020000 0.00
074 W000000 0.0000
074 X000000 43738
074 Y000000 2140
075 A000000 0
075 B000000 439879
PAGE 9
076 000000 4.13
077 A000000 Y
077 B000000 Y
077 O000000 Y
078 000000 N
080 A000000 FEDERAL INSURANCE COMPANY
080 B000000 NATIONAL UNION FIRE INSURANCE COMPANY
080 C000000 69325
081 A000000 Y
081 B000000 95
082 A000000 N
082 B000000 0
083 A000000 N
083 B000000 0
084 A000000 N
084 B000000 0
085 A000000 Y
085 B000000 N
086 A010000 195
086 A020000 807
086 B010000 0
086 B020000 0
086 C010000 0
086 C020000 0
086 D010000 0
086 D020000 0
086 E010000 0
086 E020000 0
086 F010000 0
086 F020000 0
087 A010000 COMMON STOCK
087 A020000 09255R103
087 A030000 DSU
088 A000000 N
088 B000000 N
088 C000000 N
088 D000000 N
SIGNATURE NEAL J. ANDREWS
TITLE CFO