The invention relates to a motor lock. The motor lock comprises a movable outer shell and a fixed outer shell which are arranged oppositely. A spring bolt capable of extending out of the front end of the movable outer shell is installed in the movable outer shell in a sliding mode. A spring bolt hole adaptive to an extending part of the spring bolt is formed in the fixed outer shell. A shifting groove is formed in the rear end of the spring bolt. A first lock cylinder is rotationally installed in the movable outer shell, fixedly connected with a shifting rod and provided with a first key hole. A second lock cylinder is rotationally installed on a shell body of the movable outer shell and fixedly connected with a baffle capable of covering the first key hole, and a second key hole is formed in the top end of the second lock cylinder. A first position sensor is installed between the movable outer shell and the fixed outer shell. A second position sensor used for sensing the position of the spring bolt is installed in the movable outer shell. A third position sensor used for sensing the position of the baffle is installed on the shell body of the movable outer shell. The motor lock is simple in structure, complete in function, particularly suitable for the complex environment and work conditions of net locking structures, accurate and reliable in locking and high in safety.