An airbag apparatus for a panorama roof includes: an inflator generating gas; a gas guide connected to the inflator so as to receive the gas discharged from the inflator; a tether guide arranged along the longitudinal direction of the panorama roof; an airbag having one side connected to the gas guide so as to receive the gas discharged from the gas guide, arranged at the gas guide in a state where the airbag is folded, and connected to the tether guide so as to shield the panorama roof while being unfolded along the tether guide; a moving member connected to the other side of the airbag, and moved along the tether guide; and a driving unit connected to the moving member, and moving the moving member to fold or unfold the airbag.