Provided is a vehicle sun roof apparatus including a movable panel, a supporting bracket, a guide rail, and a sliding member including: a holding portion provided on either one of the rear end portion of the sliding member and the supporting bracket so as to project in the vehicle width direction, and a holding groove provided on the other one of the rear end portion of the sliding member and the supporting bracket and configured to allow the holding portion to be locked in so as to introduce the movable panel to the fully-closed state when the movable panel is transferred to the fully-closed state.