In order to achieve compensation for tooth surface distortion during gear grinding with tooth alignment modification,on the basis of studying the development software of SINUMERIK ONEs digital native CNC system and 3GL,a new type of worm wheel 〖JP2〗grinding machine was used as the research object.The human-machine interface UI was designed using QT,and the front-end and back-〖JP〗end were designed using VS C++.The distortion modification module of the worm wheel grinding machine was developed.By inputting tooth surface modification parameters and tooth profile tilt deviation on the human-machine interface,automatic modification processing of gear distortional tooth surface compensation is achieved,the development and processing efficiency of gear grinding machines are greatly improved.