In metal cutting process, tool wear has a significant impact on tool life. Cutting experiment is a common method for tool wear research, but there are some problems such as long cycle and high cost. Therefore, the wear of the optimum cemented carbide turning tool in the cutting process was comparatively studied through the cutting simulation platform. The results show that compared with the original tool, the maximum wear depth of the optimized tool is decreased by 37.64%, and the average wear depth is decreased by 38.15%. The research results provide theoretical support for the indepth study of optimum design cemented carbide turning tools, and provide reference for tool wear simulation research in other similar metal processing processes.