Logarithmic spiral bevel gear is a spiral bevel gear whose tooth line is logarithmic spiral line. It helixes angle go along the direction of tooth with equal length. Since the high-tooth spiral bevel gear has significant advantages of high transmission stability, these gears are more widely used in the practical engineering in china, especially in the transportation field. However, as compared to the general spiral bevel gear, the complexity space meshing theory makes that it is different to process. In order to ensure that machining process is reasonable and achievable, the simulation process including how to create tools, geometry and procedures and even calculate the tool path were presented in this paper based on Siemens UG CAM.