Registration No. 333-85488

Filed Pursuant to Rule 424(b)(2)

John Hancock Life Insurance Company

SignatureNotes

With Maturities of Twelve Months or More from Date of Issue

Pricing Supplement No. 120	Trade Date: 7/2/2004
(To Prospectus dated July 22, 2002 as supplemented by Prospectus Supplement dated January 10, 2003)	Issue Date: 7/9/2004

The date of this Pricing Supplement is July 2, 2004

CUSIP or Common Code:	41013M5D8	41013M5E6	41013M5F3	41013M5G1	41013M5H9
Price to Public:	100.000%	100.000%	100.000%	100.000%	100.000%
Principal Amount:	$574,000.00	$1,018,000.00	$246,000.00	$428,000.00	$152,000.00
Proceeds to Issuer:	$571,130.00	$1,011,637.50	$244,032.00	$423,720.00	$149,872.00
Discounts and Commissions:	0.500%	0.625%	0.800%	1.000%	1.400%
Reallowance:	0.100%	0.150%	0.150%	0.150%	0.200%
Dealer:	99.625%	99.500%	99.350%	99.200%	98.800%
Maturity Date:	7/15/2006	7/15/2007	7/15/2008	7/15/2009	7/15/2012
Stated Annual Interest Rate:	2.900%	3.400%	3.850%	4.150%	4.750%
Interest Payment Frequency:	Semi	Monthly	Monthly	Monthly	Monthly
First Payment Date:	1/15/2005	8/15/2004	8/15/2004	8/15/2004	8/15/2004
Additional Amounts:	N/A	N/A	N/A	N/A	N/A
Survivor’s Option:	Yes	Yes	Yes	Yes	Yes
Callable by Issuer:	No	No	No	No	No
If Callable by Issuer, dates and terms of redemption (including the redemption price)	N/A	N/A	N/A	N/A	N/A
Original Issue Discount1:	N/A	N/A	N/A	N/A	N/A
Other Material Terms (if any):	N/A	N/A	N/A	N/A	N/A

Effective April 7, 2003 the name of Solomon Smith Barney Inc., an agent of the program, was changed to Citigroup Global Markets Inc.

¹ For information regarding certain tax provisions applicable to Original Issue Discount notes, including zero-coupon notes, see “Tax Consequences to U.S. Holders — Original Issue Discount Notes” in the Prospectus.

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Registration No. 333-85488

Filed Pursuant to Rule 424(b)(2)

John Hancock Life Insurance Company

SignatureNotes

With Maturities of Twelve Months or More from Date of Issue

Pricing Supplement No. 120	Trade Date: 7/2/2004
(To Prospectus dated July 22, 2002 as supplemented by Prospectus Supplement dated January 10, 2003)	Issue Date: 7/9/2004

The date of this Pricing Supplement is July 2, 2004

CUSIP or Common Code:	41013M5J5	41013M5K2	41013M5M8	41013M5N6
Price to Public:	100.000%	100.000%	100.000%	100.000%
Principal Amount:	$1,196,000.00	$195,000.00	$931,000.00	$1,175,000.00
Proceeds to Issuer:	$1,179,256.00	$192,075.00	$914,707.50	$1,145,625.00
Discounts and Commissions:	1.400%	1.500%	1.750%	2.500%
Reallowance:	0.200%	0.200%	0.275%	0.350%
Dealer:	98.800%	98.800%	98.600%	97.850%
Maturity Date:	7/15/2012	7/15/2014	7/15/2016	7/15/2029
Stated Annual Interest Rate:	Step: 3.450% through 7/14/2006, and 6.250% thereafter (unless called)	5.050%	5.550%	5.900%
Interest Payment Frequency:	Monthly	Monthly	Semi	Semi
First Payment Date:	8/15/2004	8/15/2004	1/15/2005	1/15/2005
Additional Amounts:	N/A	N/A	N/A	N/A
Survivor’s Option:	Yes	Yes	Yes	Yes
Callable by Issuer:	Yes	No	Yes	Yes
If Callable by Issuer, dates and terms of redemption (including the redemption price)	7/15/2006 Callable one time only at 100% on call date above with 30 days notice.	N/A	1/15/2007 Callable one time only at 100% on call date above with 30 days notice.	7/15/2009 Callable one time only at 100% on call date above with 30 days notice.
Original Issue Discount2:	N/A	N/A	N/A	N/A
Other Material Terms (if any):	N/A	N/A	N/A	N/A

² For information regarding certain tax provisions applicable to Original Issue Discount notes, including zero-coupon notes, see “Tax Consequences to U.S. Holders — Original Issue Discount Notes” in the Prospectus.

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