Solid square pile head threaded connection damage repairing device and repairing method

The invention discloses a solid square pile head threaded connection damage repairing device and method, the solid square pile head threaded connection damage repairing device comprises a sleeve module, the sleeve module comprises sleeve assemblies and a clamping piece, the two sleeve assemblies communicate with each other, and the ends, away from each other, of the two sleeve assemblies are connected with the clamping piece; the extrusion module comprises an extrusion part, a movable part, a meshing part and a release part, the extrusion part is connected with the clamping part through the movable part, and the meshing part and the release part are both connected with the movable part; and the connecting piece is clamped and fixed through the sleeve module. The connecting and clamping tool is used for achieving connection and fixation between the steel strands or between the steel strands and the steel bars, the fixing mode is simple, the fixing effect is good, and the problem that in the square pile pouring