Connecting device for hybrid engine

The invention relates to a connecting device for a hybrid engine which is used for connecting an internal-combustion engine to a motor. The device comprises a power output shaft connected to the internal-combustion engine, a motor flywheel connected to the motor and a clutch device, wherein the clutch device comprises a release bearing flexibly sleeved on the power output shaft, a shifting fork for shifting the release bearing, a clutch pressure plate fixed with the power output shaft and a diaphragm spring for separating the clutch pressure plate from the motor flywheel under the action of the release bearing. When the clutch device of the connecting device is under working condition, the motor is under the condition of slowly rotating, therefore decreasing the impact on the release bearing which runs speedily and prolonging the service life of the clutch device.