The invention provides an electrical locking device for a protective device of a sports car. An aerial cableway switch is connected with an electromagnet through a cable, wherein the electromagnet is arranged on an unhooking mechanism, a swing rod is arranged on the unhooking mechanism, and the unhooking mechanism is connected with an arrester through a small oil wick. By the adoption of the device, the protective device of the sports car can be capable of being normally used when a mine car moves, and a lifting and transporting safety facility can be reliably and normally used.