A control method for vehicle anti-theft is provided. The control method includes: identifying whether a smart key matches with a vehicle when a trigger of the vehicle is activated; generating a vehicle location data when the smart key matches with the vehicle; receiving a smart key location data; calculating a distance between the smart key and the vehicle according to the vehicle location data and the smart key location data; determining whether the distance between the smart key and the vehicle is within a predefined distance; and unlocking the vehicle when the distance between the smart key and the vehicle is within the predefined distance.