A vehicle sunroof device comprising: a movable panel configured to open and close an opening formed in a roof of a vehicle; a guide rail configured to be located at an edge in a vehicle width direction of the opening and extend in a vehicle front-rear direction; and a sliding member, which is coupled to an edge in the vehicle width direction of the movable panel and moved in the vehicle front-rear direction along the guide rail by an electric driving source, characterized by a check mechanism (30, 15) configured such that, when the sliding member moves toward the front of the vehicle while the movable panel is in a fully closed state, the check mechanism (30, 15) locks movement of the movable panel in the vehicle front-rear direction and lifts a rear section of the movable panel with a front section of the movable panel functioning as a pivot so as to bring the movable panel into a tilt up state, and that, when the sliding member moves toward the rear of the vehicle after further moving toward the front of the vehicle while the movable panel is in the tilt up state, the check mechanism (30, 15) maintains the tilt up state and unlocks movement of the movable panel, and a lock-unlock switching mechanism (30, 43), which includes a first member, which is supported by one of the sliding member and the edge in the vehicle width direction of the movable panel, and a second member, which is supported by the other one of the sliding member and the edge in the vehicle width direction of the movable panel, wherein further movement of the sliding member toward the front of the vehicle in the tilt up state causes one of the first member and the second member to press the other one of the first member and the second member so that the first member is engaged with the second member such that the sliding member and the movable panel move integrally when the sliding member later moves toward the rear of the vehicle, wherein the check mechanism (30, 15) includes a rotation check member, which includes one of an engagement groove and an engagement projection and is pivotally coupled to the edge in the vehicle width direction of the movable panel, when the movable panel moves from the fully closed state to the tilt up state, the rotation check member is at a first pivoting position at which the rotation check member locks movement of the movable panel, and when the sliding member further moves toward the front of the vehicle in the tilt up state and then moves toward the rear of the vehicle, one of the engagement groove and the engagement projection presses the other one of the engagement groove and the engagement projection so that the rotation check member pivots to move to a second pivoting position at which the rotation check member unlocks movement of the movable panel. a movable panel configured to open and close an opening formed in a roof of a vehicle; a guide rail configured to be located at an edge in a vehicle width direction of the opening and extend in a vehicle front-rear direction; and a sliding member, which is coupled to an edge in the vehicle width direction of the movable panel and moved in the vehicle front-rear direction along the guide rail by an electric driving source, a check mechanism (30, 15) configured such that, when the sliding member moves toward the front of the vehicle while the movable panel is in a fully closed state, the check mechanism (30, 15) locks movement of the movable panel in the vehicle front-rear direction and lifts a rear section of the movable panel with a front section of the movable panel functioning as a pivot so as to bring the movable panel into a tilt up state, and that, when the sliding member moves toward the rear of the vehicle after further moving toward the front of the vehicle while the movable panel is in the tilt up state, the check mechanism (30, 15) maintains the tilt up state and unlocks movement of the movable panel, and a lock-unlock switching mechanism (30, 43), which includes a first member, which is supported by one of the sliding member and the edge in the vehicle width direction of the movable panel, and a second member, which is supported by the other one of the sliding member and the edge in the vehicle width direction of the movable panel, wherein further movement of the sliding member toward the front of the vehicle in the tilt up state causes one of the first member and the second member to press the other one of the first member and the second member so that the first member is engaged with the second member such that the sliding member and the movable panel move integrally when the sliding member later moves toward the rear of the vehicle, wherein the check mechanism (30, 15) includes a rotation check member, which includes one of an engagement groove and an engagement projection and is pivotally coupled to the edge in the vehicle width direction of the movable panel, when the movable panel moves from the fully closed state to the tilt up state, the rotation check member is at a first pivoting position at which the rotation check member locks movement of the movable panel, and when the sliding member further moves toward the front of the vehicle in the tilt up state and then moves toward the rear of the vehicle, one of the engagement groove and the engagement projection presses the other one of the engagement groove and the engagement projection so that the rotation check member pivots to move to a second pivoting position at which the rotation check member unlocks movement of the movable panel.