The invention provides a cable protection pipe cutting device, and belongs to the technical field of cable production. According to the technical scheme, the cable protection pipe cutting device is characterized in that the cable protection pipe cutting device comprises a propulsion mechanism, a clamping mechanism and a cutting mechanism arranged on a bottom plate, and the cutting mechanism is arranged between the clamping mechanism and the pushing mechanism. The cable protection pipe cutting device has the beneficial effects that the protection pipe can be cut into sections with different lengths as needed, manual cutting is not needed, the cutting efficiency is high, no damage to an operator, and the safety factor is improved.