OCCUPANT PROTECTION DEVICE

An occupant protection device for a vehicle includes a collision predictor, a main airbag, a seat, a sub-airbag, and a deployment controller. The collision predictor is configured to predict a collision of the vehicle. The main airbag is configured to deploy toward an occupant from a front of the vehicle when a collision of the vehicle is predicted by the collision predictor. The seat allows the occupant to be seated, and is movable in a front-back direction of the vehicle. The sub-airbag is accommodated in an upper part of the seat, and configured to deploy downward from above the occupant. The deployment controller is configured to, when a collision of the vehicle is predicted by the collision predictor, cause the sub-airbag to deploy from the upper part of the seat and subsequently cause the main airbag to deploy.