Safety device of vehicle

The utility model discloses a vehicle anti-theft device which cooperates with a remote controller of a vehicle door starter and is characterized in that the device is provided with an outer shell (1), an inner shell (2), a password setting and input device (3), and a current turn-on device (4) of the vehicle electric door starter. Adopting electronic coding techniques, the utility model sets and inputs password by the password setting and input device (3), turns on the power supply of the vehicle electric door starter via the current turn-on device (4), and then remotes the vehicle door starter through the remote controller to switch the vehicle door. Since the passage input in the utility model is mastered by the vehicle owner and no electronic signal is sent during the process of inputting the passage, other people can not obtain the passage information of the utility model by using a decoder, then security of the vehicle is ensured. Accordingly, the utility model has advantages of reasonable structure, con