The utility model discloses an expand pipe tool for PVC pipe belongs to the technical field of construction. Its technical scheme does: an expand pipe tool for PVC pipe, includes and still includes pull ring and expansion part by the steel wire, and the pull ring is including the department of bending and the end that links to each other with the department of bending, and the department of bending of pull ring is connected with the steel wire, the end and the expansion part fixed connection of pull ring. The beneficial effects of the utility model are that: simple structure, the practicality is strong, and through the extrusion of steel ball, curved PVC pipe after flat resumes the former state, doing benefit to the wiring construction, has solved the problem of construction difficulty, can change the steel wire, and pull ring and expansion part can have enough to meet the need the use.