The invention discloses a wireless low-power dissipation parking space lock with a built-in battery and based on LoRa. The wireless low-power dissipation parking space lock comprises a parking space lock body connected to power frequency electricity, wherein a parking space module which can access to the LoRa network is connected to the parking space lock body, and is matched with a client terminal through a local area network based on Lora; the parking space lock body performs action according to a driving signal of the parking space module; the parking space module is used for receiving a control signal transmitted by the client terminal through the local area network, and driving the parking space lock body to act according to the control signal; the client terminal is used for accepting the control of a user, and transmitting the control signal to the corresponding parking space module through the local area network; and the parking space module comprises a power supply module, a field controller, a LoRa module and an indicating lamp, which are mutually connected.