The utility model discloses a full -automatic guard gate of digit control machine tool, including guard gate frame, guard gate, guard gate drive assembly and control panel, the guard gate is including the first guard gate and the second guard gate that set up side by side, and first guard gate and second guard gate be all through upper and lower both ends slide rail and guard gate frame sliding connection, the both ends of guard gate frame are provided with the baffle respectively, and control panel sets up on one of them baffle, guard gate drive assembly drives actuating cylinder including two of being used for driving first guard gate and second guard gate respectively, drives the top that actuating cylinder fixed on the guard gate frame and was located the baffle, and two telescopic links that drive actuating cylinder are connected with first guard gate and second guard gate through the connecting piece respectively, and two controllers that drive actuating cylinder are connected with control panel is electric, control panel still with the controller of digit control machine tool between electric the connection. The utility model discloses full -automatic guard gate does not block a phenomenon in opening and closing process, the operation is smooth, has reduced impact and noise, has lengthened life.