ing for solving the problem in the processing of ceramic gears, the influence of laser power, scanning speed, scanning times, and scanning interval on groove depth, width, and roughness by picosecond laser with 1064 nm wavelength is studied. Combining with geometric characteristics analysis of gears, a method for converting the curved surface processing of a cylindrical workpiece into plane processing is used to achieve a high-precision laser processing of ceramic gears with different tooth shapes (spur and helical gears). The average roughness of the tooth surface (R_a)is no more than 2 μm. Moreover, the proposed process is time efficient and can be applied to the processing of complex gears composed of different materials.