The utility model discloses a gearbox parking structure, including shift cam, parking mechanism, the parking structure include that parking wheel, parking clamp plate, parking collude board, parking axle, transmission housing's intermediate position is located to the parking axle, and the shift cam is located the downside of taking back of parking axle, the shift cam is fixed on transmission housing through the pivot, the parking collude board and parking clamp plate respectively with the parking hub connection, the one end of parking clamp plate and the one end that the board was colluded inthe parking cooperate with transmission cam roller respectively, the upper left side of parking axle, transmission cam roller's top are located to the parking clamp plate, the parking is colluded theboard and is located the top that takes over of parking axle, the other end and the parking of parking clamp plate are colluded board one end and are cooperated, the left downside of board is colludedin right side, the parking that the parking axle was located to the parking wheel, the board was colluded in parking wheel and parking one end cooperation. The utility model discloses compact structure, the dependable performance, the gearbox of having solved former electric motor car does not have the problem of parking function, has eliminated the potential safety hazard that exists when the vehicle parks.