Fuente: Wipo "precision farming" The invention relates to a stirring head service life testing method which is achieved through a stirring head service life testing device, the stirring head service life testing device comprises a supporting base, a rotary table and a welding base plate, the rotary table is installed on the supporting base, and the welding base plate is installed on the rotary table; the welding base plate is used for mounting a to-be-welded plate, and the rotary table is used for driving the to-be-welded plate to rotate; the stirring head service life testing method comprises the following steps: driving a to-be-welded plate to rotate through a rotary table, and meanwhile, enabling a stirring head to move on the to-be-welded plate along the radial direction of the rotary table; and according to the state of the plate to be welded, the welding length of the stirring head and the state of the stirring head, the service life of the stirring head is measured. The effective welding lengths of different types of stirring heads in the long-range continuous welding state can be directly evaluated, and the service lives of the different types of stirring heads can be simply, conveniently and rapidly tested and evaluated.