The invention relates to an automatic parking space ground lock which comprises a first slope plate, a second slope plate, a first side plate, a second side plate, a baffle, a bottom plate, a rotating shaft, a first gear, a second gear, a motor, a limiting block, a supporting rod, an object detection sensor, a control unit and a background control system and is integrally mounted at the central position of a parking space; the movement of a vehicle is controlled through descending and supporting the baffle. The automatic parking space ground lock provided by the invention has the advantages of being simple in structure, small in overall size and convenient to install and maintain and can effectively reduce the labor cost and prevent the phenomenon of fee evasion.