ROOF AIRBAG APPARATUS

A roof airbag apparatus according to the present disclosure includes: an airbag main body which is deployed from a roof of a vehicle by gas generated by an inflator part when the vehicle collides; a tether operation part which is mounted to the airbag main body, and has a tether; and an auxiliary airbag which is connected to the airbag main body, and deployed from the airbag main body when the connection with the tether is released.