The invention relates to the technical field of cables, and discloses a cable peeling device for cable installation, and the device comprises a housing, the top of the housing is movably connected with a reel, and the outer side of the reel is movably connected with a T-shaped rod; through the combined action of a sliding plate, a dielectric plate, a pole plate group, a rotating plate, a fixed frame, a lower cutting rod, a rotating rod and an upper cutting rod, the sheath of the cable is automatically and annularly cut, both hands are liberated, the damage to a cable core caused by difficult control of cutting force is avoided, the cutting quality is effectively improved, and the cutting device is clamped at the cutting position of the sheath and is beneficial to peeling operation. Meanwhile, the capacitance principle is used for triggering the cable stretching operation, the linkage between structures is improved, operation is more convenient, the cable is automatically wound and stretched through the combined action of the reel, the T-shaped rod and the rotary disc, a cable core of the cable is separated from the sheath, the hand burden is relieved, the peeling operation difficulty is reduced, and higher work efficiency is achieved.