The invention relates to a Bluetooth communication-based identity identification method. The method mainly comprises the following steps that first, a cloud server communicates with a Bluetooth devicethrough a lora network or an NBiot netowrk, the cloud server sends identity information to the Bluetooth device through the network, and the Bluetooth device stores the identity information, whereinthe identity information comprises a vehicle number, a first key and a password; second, a Bluetooth scanner is arranged on a vehicle and is used as an identifier, wherein the identifier has a uniquenumber, a second key is built in the identifier, and the second key is corresponding to the first key; third, the Bluetooth device broadcasts the identity information, and waits for connection and authentication by the identifier; and fourth, the identifier scans the broadcast information sent by the Bluetooth device in real time. In the prior art, a parking lock is unlocked only through operatinga remote controller or a cellphone APP, causing inconvenience to users; to meet the demand of sharing the parking space, one identifier can identify multiple parking locks dynamically, so that a vehicle can automatically identify and unlock when the vehicle is three meters away from the parking space.