MTS1600500 six-axis CNC belt grinder is a high-end CNC machine tool for precision machining of blade grinding and polishing.The workpiece grinded by the grinder is mainly wide chord hollow fan blade.Grinding is the last step in the key steps of blade machining,which requires virtual simulation grinding before actual grinding.The grinder can realize six-axis linkage,the structure of the machine tool is complicated,and there is no existing simulation environment.In order to solve this problem,UG was used as the platform to build and assemblethe geometric model of the MTS1600500 six-axis CNC belt grinder,and the grinding process simulation environment of the grinder was built in VERICUT.Taking a certain model of the wide-chord hollow fan blade as the simulation processing object,the modeling simulation environment of the grinder was verified.Finally,the correctness of the built model and the simulation environment was verified through the grinding process of the actual grinder.The virtual simulation environment of the grinder can be used to realize the dynamic simulation of the grinding process,which improves the processing efficiency and lays foundation for the subsequent installation of on-machine measurement modules.