The utility model discloses a wall built-in socket which comprises an equipment bin, a panel is installed on the outer side of the equipment bin, a storage bin is fixedly connected to the bottom of the inner side of the equipment bin, a
coil spring is installed on the inner side of the storage bin, a data line is connected to the outer side of the
coil spring in a sleeved mode, and an insulating plate is fixedly connected to the inner side of the equipment bin. A clamping groove is formed in the insulating plate, a
USB jack is formed in the front side, close to the clamping groove, of the interior of the insulating plate, a two-hole jack is formed in the front side, close to the
USB jack, of the interior of the insulating plate, and a three-hole jack is formed in the side, close to the two-hole jack, of the interior of the insulating plate. According to the wall built-in socket provided by the utility model, the
coil spring winds the data line under the elastic action of the coil spring, and the data line is stored in the storage bin, so that the purpose of conveniently realizing the built-in data line is achieved, the data line is prevented from being exposed outside, the situation that children pull the data line is further avoided, and the existing potential safety
hazard is reduced.