An exemplary embodiment of the present invention provides a dual clutch device provided in a housing coupled, at one side, to a transmission and coupled, at the other side thereof, to an engine, the dual clutch device including a motor including a stator and a rotor received in a cover, dual clutches provided close to the transmission based on the motor and connected to the rotor, an engine clutch provided close to the engine based on the motor and connected to the rotor, and a damper provided in the housing and connected to the engine clutch through a damper spline.