This utility model discloses a network cable restraint device, including a base plate, a cable clamping mechanism, a position adjustment mechanism, and an adjustment auxiliary mechanism. The cable clamping mechanism includes a cable sleeve, a base sleeve, a rotating sleeve, a limiting sleeve, a fixing rod, and a clamping sleeve. The position adjustment mechanism includes a longitudinal plate, an adjustment hole, a connecting frame, a sliding seat, a clamping tube, and a clamping rod. By pressing the cable inside the cable sleeve with the clamping sleeve, the cable can be firmly fixed, preventing it from loosening or falling off, and ensuring the safety and stability of the line. The design of the fixing rod and the limiting sleeve can ensure that the pressure of the clamping sleeve is evenly distributed, without putting excessive pressure on the cable, thus avoiding damage or deformation of the cable. The position adjustment mechanism can accurately adjust the overall position of the device to adapt to different installation requirements. The sliding seat slides directionally on the base plate, which can ensure that the position adjustment process is smooth and stable.