An airbag device that may ensure an increased restraining force and a reduction of damage with respect to an occupant that is out of position or of small stature is provided. The airbag device for a passenger seat of the present invention may be disposed inside an instrument panel of a vehicle and protects an occupant inside the vehicle by inflation and deployment of an airbag when an emergency situation occurs. The airbag device includes: an airbag that is compressed into a plurality of layers in a vertical direction when not used, and inflated and deployed when an emergency situation occurs; and a restriction member that restricts the deployment of the airbag so that a deployment direction of an upper layer portion is directed toward an occupant side, wherein the upper layer portion is deployed first from among the plurality of layers of the airbag.