The invention relates to a local muscle nerve injury test stimulator, comprising a control box and a test stimulator, the test stimulator is arranged on the side of the control box, the inner cavity of the test stimulator is provided with a panel, and the surface of the panel is provided There is a chute, one side of the chute extends to the inner cavity of the panel, a miniature sliding motor is arranged in the chute, the chute is slidably connected with the miniature sliding motor, and an infrared sensor is arranged on the surface of the miniature sliding motor , the infrared sensor runs through the chute and extends to one side of the outer wall of the chute, conductive probes are arranged on both sides of the chute, one end of the conductive probe is fixedly connected to the panel, and one side of the conductive probe is provided with Surface layer. Compared with the existing overall electrotherapy, the local treatment adopted by the present invention can achieve the best stimulating effect, and will not cause confusion to the undamaged muscle nerves, thereby improving the treatment efficiency of electrotherapy, thereby achieving the purpose of the present invention.