An airbag device includes: an airbag body that is configured to deploy toward a front side of a driver; and a control unit that is configured to deploy the airbag body using a first deployment method when a central axis of a rim portion of a steering member of a vehicle is in a first state and a deployment condition is satisfied and deploy the airbag body using a second deployment method in a second state when an inclination angle of the central axis in relation to the central axis in the first state exceeds a threshold and the deployment condition is satisfied.