The continuous improvement of national economic level makes people more and more demanding on machining. The key to realize the task optimization scheduling of machining system is manufacturing development. Machining process is a typical manufacturing process. The mechanical processing system transforms raw materials or semi-finished products into finished products or parts with qualified shape, size and precision through machining process, and consumes a lot of energy and material resources, and produces a large amount of waste materials, noise and other environmental emissions. Electromagnetic compatibility plays an increasingly important role in today’s scientific research and national defense. In the field of electromagnetic compatibility, electromagnetic compatibility analysis and electromagnetic compatibility prediction are important methods for electromagnetic compatibility research at present. Using software technology to deal with analysis and prediction is a general method, and entity modeling is an essential part of EMC simulation software.