The invention relates to a cable stripping device, comprising a main rod, wherein one end of the main rod is provided with an arcuate first cutting part, the other end of the main rod is provided witha handle end, and the middle part of the main rod is provided with a first bracket and a second bracket arranged in turn from the handle end to the first cutting part direction; also comprising a ripping bar, a connecting rod, a push rod and a hydraulic damper; the middle part of the ripping bar is hinged with the end of the first bracket, one end of the ripping bar is hinged with one end of theconnecting rod, the other end of the connecting rod is hinged with one end of the pushing rod, the other end of the pushing rod is connected with one end of the hydraulic damper through the second bracket, the pushing rod can slide back and forth on the second bracket, and the other end of the hydraulic damper is provided with an arcuate second cutting part opposite to the first cutting part; thefirst cutting part and the second cutting part each comprises a bow back and a bow string, wherein the bow back is an insulating material, and the bow string is a heat conducting wire; the cable stripping device also comprises a power supply, wherein one end of the bow string is connected with the positive pole of the power supply and the other end of the bow string is connected with the negativepole of the power supply. The cable stripping device of the invention has the advantages of simple structure, simple operation, convenience and good use.