The XD5002 CNC Milling Machine Maintenance Training Platform integrates a fault-setting electrical cabinet with the real C31 small CNC milling machine. It allows for practical product programming and machining as well as CNC milling machine maintenance and repair training. This advanced technology platform is ideal for undergraduate and vocational training programs in CNC technology, principles, and skills. It equips students with hands-on experience in CNC system programming, electrical design, installation, debugging, maintenance, and machine operation. The system features a modular design, facilitating easy assembly, expansion, inspection, and debugging. Students can learn CNC control principles, electrical principles, design methods, and component selection, gaining practical industrial experience. The platform supports both recommended and custom design, installation, and debugging processes, enhancing students' practical skills and analytical abilities.