Security encryption vehicle positioning method and device

The invention provides a security encryption vehicle positioning method and device. The method comprises the following steps that: a vehicle side encrypts positioning information, sends the positioning information to a server side, and broadcasts Bluetooth information containing a vehicle ID (Identity); and the hotspot device receives the Bluetooth information and uploads the Bluetooth information to the server side as the approximate positioning of the vehicle. And the server side receives the encrypted positioning information, the hotspot position information and the vehicle ID, and sends the encrypted information and the approximate positioning information to the user side after adding random noise to the encrypted positioning information when the user inquires. And the user side initiates a query request, receives the encrypted and rough positioning information, decrypts the positioning information by using a preset encryption algorithm and random noise after passing identity verification, and determines