UNITED STATES
                       SECURITIES AND EXCHANGE COMMISSION
                             Washington, D.C. 20549

                                    Form 13F

                               FORM 13F COVER PAGE

Report for the Calendar Year or Quarter Ended: MARCH 31, 2004

Check here if Amendment |_|; Amendment Number:
This Amendment (Check only one.):              |_| is a restatement.
                                               |_| adds new holdings entries.

Institutional Investment Manager Filing this Report:

Name:            ALLSTATE LIFE INSURANCE COMPANY
Address:         3075 SANDERS ROAD, SUITE G4A
                 NORTHBROOK, IL.  60062-7127


Form 13F File Number: 28-01037

The institutional manager filing this report and the person by whom it is signed
hereby represent that the person signing the report is authorized to submit it,
that all information contained herein is true, correct and complete, and that it
is understood that all required items, statements, schedules, lists, and tables,
are considered integral parts of this form.

Person Signing this Report on Behalf of Reporting Manager:

Name:            DOUG WELCH
Title:           ASSISTANT VICE PRESIDENT INVESTMENT OPERATIONS
Phone:           847-402-2170

Signature, Place, and Date of Signing:

          /s/ Doug Welch            NORTHBROOK, IL.             5/13/2004
            [Signature]              [City, State]                [Date]

Report Type (Check only one.):

|X|   13F HOLDINGS REPORT. (Check here if all holdings of thius reporting
      manager are reported in this report.)

|_|   13F NOTICE. (Check here if no holdings reported are in this report, and
      all hgoldings are reported by other reporting manager(s).).)

|_|   13F COMBINATION REPORT. (Check here if a portion of the holdings for this
      reporting manager are reported in this report and a portion are reported
      by other reporting manager(s).)

List of Other Managers Reporting for this Manager:

FORM 13F SUMMARY PAGE Report Summary: Number of Other Included Managers: ONE Form 13F Information Table Entry Total: 182 Form 13F Information Table Value Total: 335,700 (THOUSAND) List of Other Included Managers: Provide a numbered list of the name(s) and Form 13F file number(s) of all institutional investment managers with respect to which this report is filed, other than the manager filing this report. [If there are no entries in this list, state "NONE" and omit the column headings and list entries.] No. Form 13F File Number Name 1 028-10298 ALLSTATE INVESTMENTS LLC

FORM 13F REPORT NAME OF REPORTING MANAGER: ALLSTATE LIFE INSURANCE COMPANY COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 - ---------------------------- -------------- --------- --------- ---------------------- ---------- -------- ------------------ VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE - ---------------------------- -------------- --------- --------- ----------- --- ---- ---------- -------- ---- ------ ---- 3M COMPANY COMMON 88579Y101 401 4,900 SH DEFINED 1 X ABBOTT LABORATORIES COMMON 002824100 781 19,000 SH DEFINED 1 X AES CORP COMMON 00130H105 148 17,300 SH DEFINED 1 X ALCAN INC COMMON FOREIGN 013716105 246 5,500 SH DEFINED 1 X AMERICAN EXPRESS CO COMMON 025816109 301 5,800 SH DEFINED 1 X AMERICAN INTERNATIONAL GROUP, INC COMMON 026874107 1,555 21,800 SH DEFINED 1 X AMGEN, INC COMMON 031162100 483 8,300 SH DEFINED 1 X ANTHEM INC COMMON 03674B104 417 4,600 SH DEFINED 1 X APACHE CORP COMMON 037411105 233 5,400 SH DEFINED 1 X APPLIED MATERIALS, INC COMMON 038222105 425 19,900 SH DEFINED 1 X AT&T WIRELESS SERVICES INC COMMON 00209A106 391 28,700 SH DEFINED 1 X BANK OF AMERICA CORP COMMON 060505104 696 8,600 SH DEFINED 1 X BANK OF NEW YORK CO., INC COMMON 064057102 230 7,300 SH DEFINED 1 X BANK ONE CORPORATION COMMON 06423A103 611 11,200 SH DEFINED 1 X BAUSCH & LOMB, INC COMMON 071707103 252 4,200 SH DEFINED 1 X BELLSOUTH CORP COMMON 079860102 241 8,700 SH DEFINED 1 X BOSTON SCIENTIFIC CORP COMMON 101137107 568 13,400 SH DEFINED 1 X CAPITAL ONE FINANCIAL CORP COMMON 14040H105 317 4,200 SH DEFINED 1 X CENDANT CORPORATION COMMON 151313103 285 11,700 SH DEFINED 1 X CHEVRONTEXACO CORP COMMON 166764100 641 7,300 SH DEFINED 1 X CISCO SYSTEMS, INC COMMON 17275R102 1,416 60,200 SH DEFINED 1 X CITIGROUP INC COMMON 172967101 1,763 34,100 SH DEFINED 1 X CLEAR CHANNEL COMMUNICATIONS COMMON 184502102 398 9,400 SH DEFINED 1 X COCA-COLA CO COMMON 191216100 1,056 21,000 SH DEFINED 1 X COMPUTER ASSOCIATES INTERNATIONAL, INC COMMON 204912109 615 22,900 SH DEFINED 1 X DANAHER CORP COMMON 235851102 1,401 15,000 SH DEFINED 1 X DEERE & CO., INC COMMON 244199105 402 5,800 SH DEFINED 1 X DELL INC COMMON 24702R101 1,113 33,100 SH DEFINED 1 X DEVON ENERGY CORP COMMON 25179M103 227 3,900 SH DEFINED 1 X DISNEY (WALT) CO. (THE) COMMON 254687106 665 26,600 SH DEFINED 1 X DOMINION RESOURCES, INC COMMON 25746U109 289 4,500 SH DEFINED 1 X DU PONT (E.I.) DE NEMOURS & CO., INC COMMON 263534109 245 5,800 SH DEFINED 1 X EASTMAN KODAK CO COMMON 277461109 2,224 85,000 SH DEFINED 1 X EBAY INC COMMON 278642103 236 3,400 SH DEFINED 1 X ELECTRONIC ARTS INC COMMON 285512109 594 11,000 SH DEFINED 1 X EMERSON ELECTRIC CO COMMON 291011104 360 6,000 SH DEFINED 1 X ENTERGY CORP COMMON 29364G103 220 3,700 SH DEFINED 1 X EXELON CORP COMMON 30161N101 269 3,900 SH DEFINED 1 X EXXON MOBIL CORPORATION COMMON 30231G102 1,597 38,400 SH DEFINED 1 X FEDERAL NATIONAL MORTGAGE ASSOCIATION COMMON 313586109 617 8,300 SH DEFINED 1 X FLEET BOSTON FINANCIAL CORPORATION COMMON 339030108 328 7,300 SH DEFINED 1 X FOREST LABORATORIES, INC COMMON 345838106 551 7,700 SH DEFINED 1 X FREDDIE MAC COMMON 313400301 248 4,200 SH DEFINED 1 X GENERAL ELECTRIC CO COMMON 369604103 2,478 81,200 SH DEFINED 1 X GENERAL MOTORS CORP REDEEMABLE P/S 370442717 6,122 200,000 SH DEFINED 1 X GENERAL MOTORS SERIES A REDEEMABLE P/S 370442741 3,674 140,000 SH DEFINED 1 X GENERAL MOTORS SERIES B REDEEMABLE P/S 370442733 1,913 75,000 SH DEFINED 1 X GILEAD COMMON 375558103 245 4,400 SH DEFINED 1 X GILLETTE CO COMMON 375766102 676 17,300 SH DEFINED 1 X GOLDMAN SACHS COMMON 38141G104 605 5,800 SH DEFINED 1 X GUIDANT CORP COMMON 401698105 482 7,600 SH DEFINED 1 X HARLEY-DAVIDSON, INC COMMON 412822108 267 5,000 SH DEFINED 1 X HARTFORD FINANCIAL SERVICES GROUP COMMON 416515104 363 5,700 SH DEFINED 1 X HEWLETT-PACKARD CO COMMON 428236103 208 9,100 SH DEFINED 1 X HOME DEPOT, INC. (THE) COMMON 437076102 538 14,400 SH DEFINED 1 X HONEYWELL INTERNATIONAL INC COMMON 438516106 423 12,500 SH DEFINED 1 X INTEL CORP COMMON 458140100 908 33,400 SH DEFINED 1 X INTERNATIONAL BUSINESS MACHINE COMMON 459200101 744 8,100 SH DEFINED 1 X INTERSIL CORP COMMON 46069S109 551 24,700 SH DEFINED 1 X JOHNSON & JOHNSON COMMON 478160104 3,119 61,500 SH DEFINED 1 X JP MORGAN CHASE & COMPANY COMMON 46625H100 319 7,600 SH DEFINED 1 X KLA-TENCOR CORP COMMON 482480100 448 8,900 SH DEFINED 1 X LILLY (ELI) & CO COMMON 532457108 368 5,500 SH DEFINED 1 X LINEAR TECHNOLOGY CORP COMMON 535678106 552 14,900 SH DEFINED 1 X LIZ CLAIBORNE, INC COMMON 539320101 356 9,700 SH DEFINED 1 X LOWE'S COS., INC COMMON 548661107 275 4,900 SH DEFINED 1 X MARRIOTT INTERNATIONAL INC COMMON 571903202 302 7,100 SH DEFINED 1 X MATTEL, INC COMMON 577081102 360 19,500 SH DEFINED 1 X MBNA CORP COMMON 55262L100 229 8,300 SH DEFINED 1 X MERCK & CO., INC COMMON 589331107 711 16,100 SH DEFINED 1 X MERCURY INTERACTIVE CORPORATION COMMON 589405109 264 5,900 SH DEFINED 1 X MERRILL LYNCH & CO., INC COMMON 590188108 560 9,400 SH DEFINED 1 X MICROSOFT CORP COMMON 594918104 767 30,700 SH DEFINED 1 X MORGAN STANLEY COMMON 617446448 613 10,700 SH DEFINED 1 X NATIONAL AUSTRALIA BANK 7.875% CONVERTIBLE NON-REDEEM P/S 632525309 983 25,000 SH DEFINED 1 X NAVISTAR INTERNATIONAL CORP COMMON 63934E108 271 5,900 SH DEFINED 1 X NEW VALLEY CORP. WARRANTS WARRANTS 649080116 2 16,800 SH DEFINED 1 X NIVIDIA COMMON 67066G104 593 22,400 SH DEFINED 1 X NOVELLUS SYSTEM INC COMMON 670008101 474 14,900 SH DEFINED 1 X

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 - ---------------------------- -------------- --------- --------- ---------------------- ---------- -------- ------------------ VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE - ---------------------------- -------------- --------- --------- ----------- --- ---- ---------- -------- ---- ------ ---- OCCIDENTAL PETROLEUM CORP COMMON 674599105 226 4,900 SH DEFINED 1 X ORACLE CORP COMMON 68389X105 608 50,600 SH DEFINED 1 X P G & E CORP COMMON 69331C108 226 7,800 SH DEFINED 1 X PEPSICO, INC COMMON 713448108 786 14,600 SH DEFINED 1 X PFIZER, INC COMMON 717081103 1,998 57,000 SH DEFINED 1 X PHELPS DODGE CORP COMMON 717265102 237 2,900 SH DEFINED 1 X PHOTRONICS INC COMMON 719405102 335 18,900 SH DEFINED 1 X PRAXAIR INC COMMON 74005P104 375 10,100 SH DEFINED 1 X PROCTER & GAMBLE CO COMMON 742718109 556 5,300 SH DEFINED 1 X SBC COMMUNICATIONS INC COMMON 78387G103 454 18,500 SH DEFINED 1 X SEAGATE TECHNOLOGY HOLDINGS COMMON FOREIGN G7945J104 334 20,700 SH DEFINED 1 X SPRINT CORP (PCS GROUP) COMMON 852061506 146 15,900 SH DEFINED 1 X STAPLES COMMON 855030102 208 8,200 SH DEFINED 1 X SYNOPSYS INC COMMON 871607107 469 16,200 SH DEFINED 1 X TARGET CORP COMMON 87612E106 387 8,600 SH DEFINED 1 X TIME WARNER INC COMMON 887317105 194 11,500 SH DEFINED 1 X TRAVELERS PPTY CASUALTY REDEEMABLE P/S 89420G307 8,313 340,000 SH DEFINED 1 X TRAVELERS PROPERTY CASUALTY CO, CL B COMMON 89420G406 173 10,000 SH DEFINED 1 X TRIBUNE CO COMMON 896047107 247 4,900 SH DEFINED 1 X TYCO INTERNATIONAL LTD COMMON 902124106 968 33,800 SH DEFINED 1 X U.S. BANCORP COMMON 902973304 470 17,000 SH DEFINED 1 X UNITED TECHNOLOGIES CORP COMMON 913017109 475 5,500 SH DEFINED 1 X UNITEDHEALTH GROUP INC COMMON 91324P102 567 8,800 SH DEFINED 1 X VERIZON COMMUNICATIONS COMMON 92343V104 756 20,700 SH DEFINED 1 X VIACOM - CLASS B COMMON 925524308 565 14,400 SH DEFINED 1 X VODAFONE AIRTOUCH ADR COMMON FOREIGN 92857W100 232 9,700 SH DEFINED 1 X WACHOVIA CORP COMMON 929903102 367 7,800 SH DEFINED 1 X WAL-MART STORES, INC COMMON 931142103 1,803 30,200 SH DEFINED 1 X WELLS FARGO & CO COMMON 949746101 816 14,400 SH DEFINED 1 X WILLIAMS COS., INC COMMON 969457100 121 12,600 SH DEFINED 1 X WYETH COMMON 983024100 578 15,400 SH DEFINED 1 X XL CAPITAL LTD COMMON FOREIGN G98255105 266 3,500 SH DEFINED 1 X XTO ENERGY INC COMMON 98385X106 210 8,325 SH DEFINED 1 X 3M COMPANY DEBT 88579YAB7 4,804 5,250,000 PRN DEFINED 1 X AFFILIATED MANAGERS DEBT 008252AC2 1,063 1,000,000 PRN DEFINED 1 X ALZA CORP DEBT 02261WAB5 2,921 4,100,000 PRN DEFINED 1 X AMERICA ONLINE DEBT 02364JAC8 5,946 9,400,000 PRN DEFINED 1 X AMERICAN INTERNATIONAL GROUP DEBT 026874AN7 3,408 3,500,000 PRN DEFINED 1 X AMERICAN INTL GROUP DEBT 026874AP2 4,978 7,375,000 PRN DEFINED 1 X AMGEN INC DEBT 031162AE0 1,991 2,650,000 PRN DEFINED 1 X AON CORP DEBT 037389AT0 419 300,000 PRN DEFINED 1 X ARROW ELECTRONIC DEBT 042735AY6 3,710 7,000,000 PRN DEFINED 1 X BEST BUY DEBT 086516AD3 4,285 5,850,000 PRN DEFINED 1 X BJ SERVICES CO DEBT 055482AF0 3,819 4,500,000 PRN DEFINED 1 X BRINKER INTERNATIONAL DEBT 109641AC4 2,145 3,000,000 PRN DEFINED 1 X CARNIVAL CORP DEBT 143658AN2 2,958 2,300,000 PRN DEFINED 1 X CARNIVAL CORP DEBT 143658AS1 3,544 4,500,000 PRN DEFINED 1 X CBRL GROUP INC DEBT 12489VAB2 2,494 5,000,000 PRN DEFINED 1 X CENDANT CORP DEBT 151313AN3 6,710 6,100,000 PRN DEFINED 1 X CENTURYTEL INC DEBT 156700AH9 2,145 2,000,000 PRN DEFINED 1 X CHIRON CORP DEBT 170040AG4 3,056 3,000,000 PRN DEFINED 1 X COMPUTER ASSOCIATES INC DEBT 204912AR0 2,500 2,000,000 PRN DEFINED 1 X COSTCO DEBT 22160QAC6 4,319 5,000,000 PRN DEFINED 1 X CSX CORP DEBT 126408GA5 6,253 7,500,000 PRN DEFINED 1 X DEVON ENERGY CORP DEBT 25179MAA1 7,706 7,500,000 PRN DEFINED 1 X DEVON ENERGY CORP DEBT 25179MAB9 1,028 1,000,000 PRN DEFINED 1 X DIAMOND OFFSHORE DRILL DEBT 25271CAE2 3,198 3,340,000 PRN DEFINED 1 X DOMINION RESOURCES INC DEBT 25746UAP4 1546.875 1,500,000 PRN DEFINED 1 X DUKE ENERGY CORP DEBT 264399EJ1 5,327 4,950,000 PRN DEFINED 1 X FLUOR CORP DEBT 343412AA0 2,023 2,000,000 PRN DEFINED 1 X GATX CORP DEBT 361448AC7 565 500,000 PRN DEFINED 1 X GENERAL MILLS INC DEBT 370334AU8 1,063 1,500,000 PRN DEFINED 1 X GENZYME CORP-GENL DIVISN DEBT 372917AK0 2,018 2,000,000 PRN DEFINED 1 X HARRIS CORP DEBT 413875AH8 512 400,000 PRN DEFINED 1 X HEWLETT PACKARD CO CONV DEBT 428236AC7 4,034 7,000,000 PRN DEFINED 1 X HORACE MANN EDUCATORS DEBT 440327AG9 2,653 5,600,000 PRN DEFINED 1 X INCO LTD DEBT 453258AM7 2,918 3,000,000 PRN DEFINED 1 X INTL GAME TECHNOLOGY DEBT 459902AL6 3,895 4,000,000 PRN DEFINED 1 X INTL PAPER CO DEBT 460146BM4 6,925 12,450,000 PRN DEFINED 1 X IVAX CORP DEBT 465823AD4 4,085 4,000,000 PRN DEFINED 1 X IVAX CORP DEBT 465823AG7 2,023 2,000,000 PRN DEFINED 1 X KERR-MCGEE DEBT 492386AP2 5,004 4,660,000 PRN DEFINED 1 X LABORATORY CORP OF AMER DEBT 50540RAC6 2,028 2,750,000 PRN DEFINED 1 X LEGG MASON INC DEBT 524901AG0 1,470 2,000,000 PRN DEFINED 1 X LEHMAN BROTHERS HOLDINGS DEBT 524908JJ0 4,738 5,000,000 PRN DEFINED 1 X LEHMAN BROTHERS HOLDINGS DEBT 524908LS7 2,080 2,000,000 PRN DEFINED 1 X LIBERTY MEDIA DEBT 530715AR2 3,409 3,565,000 PRN DEFINED 1 X LIBERTY MEDIA / AT&T CORP DEBT 530715AG6 3,214 4,250,000 PRN DEFINED 1 X LIBERTY MEDIA CORP DEBT 530715AN1 914 1,000,000 PRN DEFINED 1 X LOCKHEED MARTIN CORP DEBT 539830AP4 6,010 6,000,000 PRN DEFINED 1 X

COLUMN 1 COLUMN 2 COLUMN 3 COLUMN 4 COLUMN 5 COLUMN 6 COLUMN 7 COLUMN 8 - ---------------------------- -------------- --------- --------- ---------------------- ---------- -------- ------------------ VALUE SHRS OR SH/ PUT/ INVESTMENT OTHER VOTING AUTHORITY NAME OF ISSUER TITLE CLASS CUSIP (x$1000) PRN AMT PRN CALL DISCRETION MANAGERS SOLE SHARED NONE - ---------------------------- -------------- --------- --------- ----------- --- ---- ---------- -------- ---- ------ ---- LOWES COMPANIES DEBT 548661CF2 4,163 4,500,000 PRN DEFINED 1 X LOWE'S COMPANIES INC DEBT 548661CG0 6,145 5,750,000 PRN DEFINED 1 X MASCO CORP DEBT 574599AW6 6,956 15,000,000 PRN DEFINED 1 X MEDIMMUNE INC DEBT 584699AE2 1,895 2,000,000 PRN DEFINED 1 X MEDTRONIC INC DEBT 585055AB2 11,681 11,300,000 PRN DEFINED 1 X MERRILL LYNCH & CO DEBT 590188A73 3,966 3,800,000 PRN DEFINED 1 X MORGAN STANLEY DEBT 617446GR4 2,316 2,500,000 PRN DEFINED 1 X ODYSSEY RE HOLDINGS DEBT 67612WAB4 2,675 2,000,000 PRN DEFINED 1 X OMNICOM GROUP INC DEBT 681919AM8 3,049 3,000,000 PRN DEFINED 1 X PMI GROUP INC DEBT 69344MAE1 5,968 5,450,000 PRN DEFINED 1 X PPL ENERGY SUPPLY LLC DEBT 69352JAE7 2,625 2,500,000 PRN DEFINED 1 X QUEST DIAGNOSTIC INC DEBT 74834LAF7 1,868 1,750,000 PRN DEFINED 1 X RADIAN GROUP INC DEBT 750236AF8 1,524 1,500,000 PRN DEFINED 1 X STMICROELECTRONICS NV DEBT 861012AB8 1,775 2,000,000 PRN DEFINED 1 X TEVA PHARMACEUT FIN BV DEBT 88164MAB4 5,582 3,700,000 PRN DEFINED 1 X TJX COMPANIES DEBT 872540AL3 1,768 2,000,000 PRN DEFINED 1 X TRANSOCEAN SEDCO FOREX DEBT 893830AD1 3,984 4,050,000 PRN DEFINED 1 X UNIV HEALTH SVCS DEBT 913903AL4 4,659 7,700,000 PRN DEFINED 1 X WALT DISNEY COMPANY DEBT 254687AU0 9,945 9,000,000 PRN DEFINED 1 X WEATHERFORD INT'L DEBT 947074AB6 4,263 6,700,000 PRN DEFINED 1 X WORLD COLOR PRESS, INC., CONVERTIBLE DEBT 981443AA2 1,014 1,000,000 PRN DEFINED 1 X XL CAPITAL LTD DEBT 98372PAB4 8,224 12,800,000 PRN DEFINED 1 X YOUNG & RUBICAM DEBT 987425AC9 3,522 3,500,000 PRN DEFINED 1 X - ---------------------------- -------------- --------- --------- ----------- "STOCK" 112 82,282 2,417,625 - ---------------------------- -------------- --------- --------- ----------- DEBT 70 253,418 298,790,000 - ---------------------------- -------------- --------- --------- ----------- REPORT TOTALS 182 335,700 301,207,625 - ---------------------------- -------------- --------- --------- -----------