Abstract: Taking rotary lip seal as research object, the micro-textures of three different shapes were processed on the shaft surface by laser processing technology and the comparative tests were carried out on the oil seal test machine. The influence of different micro-textures of shaft surface and different speeds on the temperature rise of oil cavity, friction torque and reverse pumping rate were discussed and the microscopic morphology of the lip surface before and after the test was compared and analyzed by scanning electron microscope. The results show that the micro-texture of the shaft surface has a greater impact on the temperature rise of oil cavity, friction torque and reverse pumping rate. Compared with the smooth shaft,the reverse pumping rate can be increased by micro-texturing triangular and rectangular holes on shaft surfaces, especially, the former has a higher increase of 3 times at 2000 r/min, but it also brings a certain increase in the temperature rise and the friction torque, which needs to be considered in the design. The friction torque and reverse pumping rate also increase as the speed increases. More rough peaks appear on the lip surface which matches with micro-textured shaft surfaces of triangular and rectangular and the distribution is more uniform, while the fewer rough peaks appear when match with the round texture and smooth shaft surface and the distribution is relatively scattered.