The invention discloses a latch device for a flying car. The latch device for the flying car is installed on a structural box body to be locked and comprises a handle, a handle shaft, a space four-barmechanism, slider-crank mechanisms, a plane four-bar mechanism, a support I and a support II; the handle shaft is installed on a longitudinal support plate in the structural box body; one end of thehandle shaft is hinged to one end of the space four-bar mechanism; the other end of the space four-bar mechanism is respectively hinged to the slider-crank mechanisms, the plane four-bar mechanism andthe support I; the support I and the support II are both arranged on a transverse support plate; the two slider-crank mechanisms are arranged; the plane four-bar mechanism is arranged between the twoslider-crank mechanisms; the two ends of the plane four-bar mechanism are respectively hinged to the support I, the space four-bar mechanism, the left slider-crank mechanism, the support II and the right slider-crank mechanism and horizontally transmits power; the handle is connected to the handle shaft; and the handle is pulled to drive each mechanism to move to achieve locking or unlocking actions. According to the latch device for the flying car, the two sides can be simultaneously latched and unlatched, the operation is convenient, and the practicability is high.