A sunroof apparatus for a vehicle, comprising: a movable panel configured to open and close an opening formed at a roof of a vehicle; a guide rail provided at each edge portion of the opening in a vehicle width direction and being extended in a front-rear direction of the vehicle; a first sliding member connected to each edge portion of the movable panel in the vehicle width direction and movably provided along the guide rail, the first sliding member being driven to move by a drive source; characterized by, a check mechanism restricting a movement of the movable panel in a front-rear direction in a case where the first sliding member moves to a front direction of the vehicle from a fully closed state of the movable panel to bring the movable panel to a first tilt-up state in which a rear portion of the movable panel is raised with a front portion of the movable panel as a fulcrum, the check mechanism releasing the restriction of the movement of the movable panel while maintaining a second tilt-up state of the movable panel in a case where the first sliding member further moves in the front direction of the vehicle so as to bring the movable panel to the second tilt-up state after the movable panel is brought to the first tilt-up state and the first sliding member moves in the rear direction after the movable panel is shifted to the second tilt-up state; a first member mounted to each first sliding member; and a second member provided at said each edge portion of the movable panel in the vehicle width direction and being rotatably supported about a first axis line extending in the vehicle front-rear direction; wherein the first member and the second member configured to engage with each other so that the first member and the second member integrally move with the movable panel, the second member rotating when the first sliding member further moves in the front direction of the vehicle in the tilt-up state by a pressing effect between the first member and the second member, the second member further rotating when the first sliding member moves in the rear direction of the vehicle in the tilt-up state thereafter by the pressing effect between the first member and the second member; one of the first sliding member and the first member includes a mounting recessed portion; the other of the first sliding member and the first member includes a mounting projection fitted to the mounting recessed portion in front-rear direction of the first member from an upper side to downward in a vehicle height direction, the mounting projection being restricted in its movement in the front-rear direction of the vehicle; and one of the first sliding member and the first member includes an engagement pawl retaining the mounting projection. a movable panel configured to open and close an opening formed at a roof of a vehicle; a guide rail provided at each edge portion of the opening in a vehicle width direction and being extended in a front-rear direction of the vehicle; a first sliding member connected to each edge portion of the movable panel in the vehicle width direction and movably provided along the guide rail, the first sliding member being driven to move by a drive source; characterized by, a check mechanism restricting a movement of the movable panel in a front-rear direction in a case where the first sliding member moves to a front direction of the vehicle from a fully closed state of the movable panel to bring the movable panel to a first tilt-up state in which a rear portion of the movable panel is raised with a front portion of the movable panel as a fulcrum, the check mechanism releasing the restriction of the movement of the movable panel while maintaining a second tilt-up state of the movable panel in a case where the first sliding member further moves in the front direction of the vehicle so as to bring the movable panel to the second tilt-up state after the movable panel is brought to the first tilt-up state and the first sliding member moves in the rear direction after the movable panel is shifted to the second tilt-up state; a first member mounted to each first sliding member; and a second member provided at said each edge portion of the movable panel in the vehicle width direction and being rotatably supported about a first axis line extending in the vehicle front-rear direction; wherein the first member and the second member configured to engage with each other so that the first member and the second member integrally move with the movable panel, the second member rotating when the first sliding member further moves in the front direction of the vehicle in the tilt-up state by a pressing effect between the first member and the second member, the second member further rotating when the first sliding member moves in the rear direction of the vehicle in the tilt-up state thereafter by the pressing effect between the first member and the second member; one of the first sliding member and the first member includes a mounting recessed portion; the other of the first sliding member and the first member includes a mounting projection fitted to the mounting recessed portion in front-rear direction of the first member from an upper side to downward in a vehicle height direction, the mounting projection being restricted in its movement in the front-rear direction of the vehicle; and one of the first sliding member and the first member includes an engagement pawl retaining the mounting projection.