The present invention relates to a locking device which has an electromagnet solenoid, and more particularly to a locking device which has an electromagnet solenoid, and which is suitably used in a shift lever lock in a vehicle automatic transmission apparatus. In the present invention the attraction type solenoid is used for controlling the operations of the movable members of the locking device. A locking device is provided in which the movable members of the locking device can be smoothly operated without hindrance, locking and unlocking operations of the locking device are highly reliable, and a harsh operation noise can be prevented by a shock-absorbing member from being produced, and which is simple and compact in configuration, and economical.