DSU BlackRock Debt Strategies Fund Inc New

000 B000000 02/28/2010
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
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 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 BNY MELLON SHAREOWNER SERVICES
012 B000001 85-05006
012 C010001 JERSEY CITY
012 C020001 NJ
012 C030001 07310
013 A000001 DELOITTE & TOUCHE LLP
013 B010001 PRINCETON

013 B020001 NJ
013 B030001 08540
014 A000001 BB & T AM DISTRIBUTORS, INC.
014 B000001 8-52396
014 A000002 BLACKROCK CAPITAL MARKETS, LLC
014 B000002 8-67827
014 A000003 BLACKROCK DISTRIBUTORS, INC.
014 B000003 8-48775
014 A000004 BLACKROCK INVESTMENTS, LLC
014 B000004 8-48436
014 A000005 HARRIS WILLIAMS LLC
014 B000005 8-53380
014 A000006 MGI FUNDS DISTRIBUTOR, INC.
014 B000006 8-46960
014 A000007 NATCITY INVESTMENTS, INC.
014 B000007 8-35288
014 A000008 NORTHERN FUNDS DISTRIBUTORS, LLC
014 B000008 8-51242
014 A000009 PNC CAPITAL MARKETS, INC.
014 B000009 8-32493
014 A000010 PNC INVESTMENTS LLC
014 B000010 8-66195
014 A000011 PFPC DISTRIBUTORS, INC.
014 B000011 8-45467
014 A000012 RED CAPITAL MARKETS, INC.
014 B000012 8-31175
014 A000013 BLACKROCK EXECUTION SERVICES
014 B000013 8-48719
014 A000014 BLACKROCK FUND DISTRIBUTION COMPANY
014 B000014 8-67795
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 BHF ASSET SERVICING GMBH
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 E010005 X
015 A000006 THE BANK OF NEW YORK MELLON
015 B000006 S
015 C010006 UNITED KINGDOM
015 D010006 UNITED KINGDOM
015 E010006 X
015 A000007 DEUTSCHE BANK AG
015 B000007 S
015 C010007 LONDON
015 D010007 UNITED KINGDOM
015 E040007 X
018 000000 Y
019 A000000 Y
019 B000000 282
019 C000000 BLKRKADVSR
020 A000001 JONESTRADING INSTITUTIONAL SERVICES LLC
020 B000001 51-0484896
020 C000001 10
020 A000002 BEDROK SECURITIES LLC
020 C000002 2
020 A000003 JEFFERIES & COMPANY, INC.
020 B000003 95-2622900
020 C000003 1
020 A000004 RAFFERTY CAPITAL MARKETS, LLC
020 C000004 1
020 A000005 CREDIT SUISSE SECURITIES (USA) L.L.C.
020 B000005 13-5659485
020 C000005 0
020 A000006 JANNEY MONTGOMERY SCOTT LLC
020 B000006 23-0731260
020 C000006 0
020 A000007 CITIGROUP GLOBAL MARKETS, INC.
020 B000007 11-2418191
020 C000007 0
020 C000008 0
020 C000009 0
020 C000010 0
021 000000 14
022 A000001 BLK LIQUIDITY FUNDS, TEMPFUND, INSTIT. CLASS
022 B000001 52-0983343
022 C000001 213388
022 D000001 206057
022 A000002 J.P. MORGAN SECURITIES INC.
022 B000002 13-3299429
022 C000002 65649
022 D000002 21991

022 A000003 CREDIT SUISSE SECURITIES (USA) L.L.C.
022 B000003 13-5659485
022 C000003 40534
022 D000003 35185
022 A000004 DEUTSCHE BANK SECURITIES INC.
022 B000004 13-2730828
022 C000004 38030
022 D000004 27387
022 A000005 BARCLAYS CAPITAL INC.
022 C000005 27581
022 D000005 25975
022 A000006 BANC OF AMERICA SECURITIES LLC
022 B000006 56-2058405
022 C000006 40436
022 D000006 9629
022 A000007 GOLDMAN, SACHS & CO.
022 B000007 13-5108880
022 C000007 38762
022 D000007 8113
022 A000008 CITIGROUP GLOBAL MARKETS, INC.
022 B000008 11-2418191
022 C000008 21626
022 D000008 19204
022 A000009 MORGAN STANLEY & CO. INCORPORATED
022 B000009 13-2655998
022 C000009 17190
022 D000009 18098
022 A000010 JEFFERIES & COMPANY, INC.
022 B000010 95-2622900
022 C000010 8134
022 D000010 10470
023 C000000 560314
023 D000000 499211
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
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
054 H000000 Y
054 I000000 N
054 J000000 Y
054 K000000 N
054 L000000 N
054 M000000 Y
054 N000000 N
055 A000000 N
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 0.3
062 M000000 0.0
062 N000000 0.0
062 O000000 0.0
062 P000000 58.5
062 Q000000 56.5
062 R000000 5.0
063 A000000 0
063 B000000 5.7
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
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 356384
071 B000000 353648
071 C000000 410382
071 D000000 86
072 A000000 12
072 B000000 46119
072 C000000 0
072 D000000 0
072 E000000 564
072 F000000 2442
072 G000000 119
072 H000000 0
072 I000000 108
072 J000000 27
072 K000000 0
072 L000000 47
072 M000000 65
072 N000000 38
072 O000000 0
072 P000000 729
072 Q000000 0
072 R000000 56
072 S000000 151
072 T000000 0
072 U000000 0
072 V000000 0
072 W000000 514
072 X000000 4296
072 Y000000 2
072 Z000000 42389
072AA000000 22416
072BB000000 131707
072CC010000 275497
072CC020000 0
072DD010000 42863
072DD020000 0
072EE000000 0
073 A010000 0.3900
073 A020000 0.0000
073 B000000 0.0000

073 C000000 0.0100
074 A000000 561
074 B000000 0
074 C000000 0
074 D000000 481780
074 E000000 0
074 F000000 18566
074 G000000 0
074 H000000 0
074 I000000 5391
074 J000000 14395
074 K000000 0
074 L000000 6733
074 M000000 717
074 N000000 528143
074 O000000 40960
074 P000000 225
074 Q000000 67000
074 R010000 0
074 R020000 0
074 R030000 0
074 R040000 736
074 S000000 0
074 T000000 419222
074 U010000 107657
074 U020000 0
074 V010000 3.89
074 V020000 0.00
074 W000000 0.0000
074 X000000 49319
074 Y000000 8168
075 A000000 0
075 B000000 349526
076 000000 3.91
077 A000000 Y
077 B000000 Y
078 000000 N
080 A000000 VIGILANT INSURANCE COMPANY
080 B000000 NATIONAL UNION FIRE INSURANCE COMPANY
080 C000000 85000
081 A000000 Y
081 B000000 101
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 422

086 A020000 1409
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