Structure of power train for vehicle

A structure of a powertrain for a vehicle, the structure comprising:

• a first clutch connecting or disconnecting power from an engine;
• a driving motor disposed between the first clutch and a transmission, including a stator and a rotor, and having a recess such that a center of a side of the rotor that faces the first clutch concaves toward the transmission;
• and
• an actuator at least partially inserted in the recess to operate the first clutch, and
• a housing receiving the driving motor and the first clutch therein and having a separation wall which separates the driving motor from the first clutch in a compartment structure.