Motorcycle engine suspension system

In order to solve the problems of driving and taking comfort reduction and the like due to engine vibration limitation incapability of an engine installing structure of an engine suspension system in the prior art, the utility model provides a motorcycle engine suspension system. The back part of an engine is connected with left and right connecting plates through a flat fork shaft in a way of being capable of rotating in the axial direction of the flat fork shaft, the front part of the engine is fixedly connected with left and right front suspensions, a front suspension reinforcing plate is fixedly connected between the left and right front suspensions, in addition, the upper parts of the left and right front suspensions are respectively and fixedly connected with front suspension left and right support frames, the left and right front suspensions are of Y-shaped structures, the left and right front suspensions and the reinforcing plate form a U-shaped structure at the front part of the engine, the upper part of the engine is fixedly connected with an engine connecting plate fixedly connected with an upper suspension plate, and the upper suspension plate is fixedly connected with the left and right upper suspension support frames. The motorcycle engine suspension system has the beneficial effects that the engine suspension system absorbs the engine vibration torque in the engine torque transmission direction and the vibration value maximum direction, and the driving and taking comfort and the operation and control comfort are improved.