The invention provides a vehicle occupant restraint system capable of protecting an occupant during a rollover of a vehicle body. When a rollover of a vehicle body is detected or predicted by a roll sensor (12), a front airbag (13) is deployed in front of an occupant (M), and a rear airbag (14) is deployed to push the occupant (M) forward. Since the occupant (M) is pushed against the deployed front airbag (13) and held thereby, any movement of the occupant (M) from a seat (2) can be suppressed.