A vehicle airbag device has: a pad cover provided at the center of a steering wheel constituted of a spoke, a rim, and a hub and secured to the hub or to the spoke; an airbag that is provided, in a folded state, at the pad cover and deploys upon collision of the vehicle by tearing the pad cover to restrain a vehicle occupant; and an inflator secured to the hub or to the spoke to supply inflation gas into the airbag upon collision of the vehicle. The pad cover has an extension portion extending from the center of the steering wheel to the rim such that the extension portion overlaps the spoke. The extension portion has a tear portion that tears upon collision of the vehicle. A portion of the airbag is disposed, in a folded state, at the extension portion.