A Bluetooth key apparatus is provided. The apparatus comprises a control unit; a Bluetooth locking device connected with the control unit; and a Bluetooth unlocking device connected with the control unit. After setting, the Bluetooth unlocking device and the Bluetooth locking device are specifically grouped for handshake communication. After waking up the Bluetooth locking device, the Bluetooth unlocking device receives a password provided by the Bluetooth locking device; and, after the Bluetooth unlocking device inputs the password, the Bluetooth locking device is unlocked. Thus, the present invention effectively enhances anti-theft, distributes key remotely, manages key databases and prevents password from leaking.