PAGE  1
000 B000000 02/28/2011
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
      PAGE  2
013 B020001 NJ
013 B030001 08540
014 A000001 BLACKROCK CAPITAL MARKETS, LLC
014 B000001 8-67827
014 A000002 BLACKROCK EXECUTION SERVICES
014 B000002 8-48719
014 A000003 BLACKROCK FUND DISTRIBUTION COMPANY
014 B000003 8-67795
014 A000004 BLACKROCK INVESTMENTS, LLC
014 B000004 8-48436
014 A000005 HARRIS WILLIAMS LLC
014 B000005 8-53380
014 A000006 PNC CAPITAL MARKETS, INC.
014 B000006 8-32493
014 A000007 PNC INVESTMENTS LLC
014 B000007 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 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
      PAGE  3
015 D010007 UNITED KINGDOM
015 E040007 X
018  000000 Y
019 A000000 Y
019 B000000  294
019 C000000 BLKRKADVSR
020 A000001 JEFFERIES & COMPANY, INC.
020 B000001 95-2622900
020 C000001     46
020 A000002 JONESTRADING INSTITUTIONAL SERVICES LLC
020 B000002 51-0484896
020 C000002     27
020 A000003 BROADPOINT CAPITAL, INC.
020 B000003 11-2657332
020 C000003      1
020 A000004 BEDROK SECURITIES LLC
020 C000004      1
020 A000005 UBS SECURITIES LLC
020 B000005 13-3873456
020 C000005      1
020 A000006 CREDIT SUISSE SECURITIES (USA) L.L.C.
020 B000006 13-5659485
020 C000006      0
020 A000007 CRT CAPITAL GROUP, LLC
020 B000007 06-1386357
020 C000007      0
020 A000008 GOLDMAN, SACHS & CO.
020 B000008 13-5108880
020 C000008      0
020 A000009 DEUTSCHE BANK SECURITIES INC.
020 B000009 13-2730828
020 C000009      0
020 A000010 JANNEY MONTGOMERY SCOTT LLC
020 B000010 23-0731260
020 C000010      0
021  000000       77
022 A000001 BLK LIQUIDITY FUNDS, TEMPFUND, INSTIT. CLASS
022 B000001 52-0983343
022 C000001    271344
022 D000001    264164
022 A000002 J.P. MORGAN SECURITIES INC.
022 B000002 13-3299429
022 C000002     82884
022 D000002     31134
022 A000003 DEUTSCHE BANK SECURUTIES INC.
022 B000003 13-2730828
022 C000003     65080
022 D000003     29655
022 A000004 CREDIT SUISSE SECURITIES (USA) L.L.C.
022 B000004 13-5659485
022 C000004     70944
      PAGE  4
022 D000004     18405
022 A000005 BANC OF AMERICA SECURITIES LLC
022 B000005 56-2058405
022 C000005     48758
022 D000005     22333
022 A000006 MORGAN STANLEY & CO. INCORPORATED
022 B000006 13-2655998
022 C000006     35734
022 D000006     30589
022 A000007 BARCLAYS CAPITAL INC.
022 C000007     45185
022 D000007     16964
022 A000008 GOLDMAN, SACHS & CO.
022 B000008 13-5108880
022 C000008     34652
022 D000008     13361
022 A000009 CITIGROUP GLOBAL MARKETS, INC.
022 B000009 11-2418191
022 C000009     30752
022 D000009     16222
022 A000010 MERRILL LYNCH, PIERCE, FENNER & SMITH INC.
022 B000010 13-5674085
022 C000010     26947
022 D000010      8043
023 C000000     747265
023 D000000     504859
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
      PAGE  5
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 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
      PAGE  6
062 J000000   0.0
062 K000000   0.0
062 L000000   1.0
062 M000000   0.0
062 N000000   0.0
062 O000000   0.0
062 P000000  56.2
062 Q000000  71.0
062 R000000   2.8
063 A000000   0
063 B000000  6.8
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
      PAGE  7
070 Q010000 Y
070 Q020000 N
070 R010000 N
070 R020000 N
071 A000000    507346
071 B000000    457123
071 C000000    562238
071 D000000   81
072 A000000 12
072 B000000    40729
072 C000000       13
072 D000000        0
072 E000000      809
072 F000000     3161
072 G000000       97
072 H000000        0
072 I000000      114
072 J000000       59
072 K000000        0
072 L000000       58
072 M000000       57
072 N000000       39
072 O000000        0
072 P000000     1133
072 Q000000        0
072 R000000       57
072 S000000      290
072 T000000        0
072 U000000        0
072 V000000        0
072 W000000      512
072 X000000     5577
072 Y000000        2
072 Z000000    35976
072AA000000    28588
072BB000000    31022
072CC010000    44871
072CC020000        0
072DD010000    36853
072DD020000        0
072EE000000        0
073 A010000   0.3300
073 A020000   0.0000
073 B000000   0.0000
073 C000000   0.0100
074 A000000      112
074 B000000        0
074 C000000        0
074 D000000   586291
074 E000000        0
074 F000000     8363
      PAGE  8
074 G000000        0
074 H000000        0
074 I000000     9588
074 J000000     7788
074 K000000        0
074 L000000     7560
074 M000000      567
074 N000000   620269
074 O000000    40384
074 P000000      271
074 Q000000   117000
074 R010000        0
074 R020000        0
074 R030000        0
074 R040000     1367
074 S000000        0
074 T000000   461247
074 U010000   107772
074 U020000        0
074 V010000     4.28
074 V020000     0.00
074 W000000   0.0000
074 X000000    43541
074 Y000000     1718
075 A000000        0
075 B000000   437440
076  000000     4.05
077 A000000 Y
077 B000000 Y
077 O000000 Y
078  000000 N
080 A000000 FEDERAL INSURANCE COMPANY
080 B000000 NATIONAL UNION FIRE INS. CO. OF PITTSBURGH,PA
080 C000000    71150
081 A000000 Y
081 B000000  96
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    115
086 A020000    465
086 B010000      0
086 B020000      0
086 C010000      0
086 C020000      0
086 D010000      0
      PAGE  9
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