The invention discloses a stirring shaft for paint and relates to the technical field of buildings. The upper end of a shaft body is connected with a connector; a stirring arc ring is welded on a lower side wall of the shaft body; the inner side wall of the stirring arc ring is connected with the shaft body through a reinforcing rod; longitudinal stirring rods are symmetrically welded on outer side walls of the shaft body; a plurality of transverse stirring rods are welded on the longitudinal stirring rods; a connecting rod is arranged at the lower end of the shaft body; a cross stirring rack is arranged at the lower end of the connecting rod; and a scraper is arranged at the bottom of the cross stirring rack. The stirring shaft disclosed by the invention is convenient for realizing rapid connecting and stirring, and is short in stirring time, uniform in stirring, easy and convenient to operate and high in efficiency.