The invention discloses an insulated wire stripping machine, which comprises a power assembly and functional equipment, and is characterized in that the functional equipment comprises an upper fixing plate, an upper cutter body, a lower cutter body, a lower fixing plate and an operating platform; the upper fixing plate and the lower fixing plate are respectively installed on the operating platform; the upper cutter body is installed below the upper fixing plate, the lower cutter body is installed above the lower fixing plate, the upper cutter body and the lower cutter body adapt to each other in position, and the power assembly is installed above the upper fixing plate and controls movements of the upper cutter body. The insulated wire stripping machine can quickly strip the skin of 10KV and above insulated wires when wire processing and assembling are performed in a batched manner in industrialized assembly.