The invention relates to a stripper for an insulated outer semiconductor layer of a cable. The stripper comprises a fixed knob, a cutting feed knob, a fixed binding clip, a cylindrical slicer, a sliding binding clip, and handles; the fixed knob is arranged at the fixed binding clip; the cutting feed knob is connected with the cylindrical slicer; the cutting feed knob is arranged at the fixed binding clip; the cylindrical slicer is arranged inside the fixed binding clip; the sliding binding clip is connected with the fixed binding clip; and the handles are arranged at the fixed binding clip and the sliding binding clip. According to the invention, the provided stripper has advantages of simple operation, rapid peeling, and convenient carrying; the work efficiency can be substantially improved when a cable head or a cable intermediate head is manufactured; lots of work time can be saved; and the manufacturing efficiency and the quality of the cable can be improved.