The invention discloses a laser surface strengthening method for rollers. The laser surface strengthening method aims at solving the problem that rollers treated through an existing laser surface treatment method are nonuniform in wear in the use process. According to the laser surface strengthening method for the rollers, a wear curve graph is drawn according to the measured wear sizes I of all portions on the surfaces of the used rollers, the rollers are treated based on the wear curve graph, then measurement and turning are conducted on the rollers used for a period of time, the wear sizes II and the portions difficult to turn are obtained, the wear curve graph is optimized according to the wear sizes II and the portions difficult to turn, and finally laser surface treatment is conducted on the rollers according to the optimized wear curve graph. According to the rollers treated according to the optimized wear curve graph, the surfaces of the outer circumferences of the rollers are uniform in wear in the use process, the rolling quality is guaranteed, the one-time work time is long, and the production efficiency is improved; and besides, due to the fact that the wear is uniform, following turning of the rollers is facilitated, and the roller repair is more convenient and faster.