The automation of CNC machine tools can basically eliminate manual operation errors, and the parts produced are of good quality and high precision. At present, China has developed a highly flexible machine tool automation system, which integrates processing, production and programming management into a complete set of workflow, and highly integrates key links such as assembly, processing and inspection to achieve unattended production operations. In the future, the foundation and core technology of machine tool automation in China's manufacturing industry belongs to numerical control technology.