Abstract: As today's society puts forward higher requirements for the application of CNC machine tools, to meet the actual needs of the society, it is necessary to carry out scientific transformation and appropriate innovation, so that it can better comply with the development requirements of the social market, thereby ensuring that my country's CNC machine tools The field can be effectively reformed and continuously innovated. Based on this, this article focuses on solving the related problems in the maintenance and transformation of CNC machine tools, formulating feasible troubleshooting schemes, and optimizing the problems of CNC machine tool transformation, in order to give full play to the application value of CNC machine tools.