To provide a vehicle anti-theft device capable of further enhancing security level of the vehicle.

The vehicle anti-theft device 12 is provided with a check sensor part 47 for obtaining user information inherent to a user; ROM 40a for previously recording user discrimination information for discriminating a correct user of the vehicle; and HMI control part 40 for operating vehicle equipment articles previously allotted to respective switches 31-36 of an operation part 30 in the state where the user information and the user discrimination information are coincident when the operation part 30 operated for operating the vehicle equipment articles is operated. When the operation part 30 is operated in the state where the user information and the user discrimination information are not coincident, the HMI control part 40 operates another vehicle equipment article other than the vehicle equipment articles previously allotted to the respective switches 31-36.