The car antirobbery device consists of two portions of device A and device B. The device A is a key remote controller, can be carried with user, and the device B is solidified in the cover plate of car accumulator, and integrated with said cover plate. When the car is started by user, the push button of device A can be pressed, said invention utilizes the control of device B to make the output of position electrode of power supply of car accumulator be cut off or only output smaller current which can not start car. Because the device B is solidified in the cover plate of car accumulator, it can not be found by other person, so that it can possess good antirobbery function, and its service life is long. |