Abstract: Aiming at the needs of teaching, scientific research and makers for small and personalized product processing, a desktop small CNC processing platform was designed and developed. All of them adopt batch standard parts that are easy to purchase; adopt open-source hardware and software platform and open-source G code motion controller; adopt trolley design and equipped with eccentric shaft sleeve structure for tool motion; adopt wireless remote control to realize the real-time control and monitoring of processing process of cloud platform system composed of machining center. The actual machining results show that the system has good accuracy, high stiffness and wear resistance. Compared with the traditional CNC and the existing similar products, this platform has high cost performance, effectively fills the gap of domestic related products, and has a large market application prospect.