Abstract: This paper introduces the composition and working principle of a magnetic levitation spindle system and proposes a novel digital controller design based on a conventional PID controller. The core component is the TI TMS320LF2407A, and a hardware block diagram of the five-degree-of-freedom magnetic levitation spindle system is designed. Using the C2000 as the development platform, an intelligent PID controller based on a conventional PID controller is designed. Theoretical analysis results show that this intelligent PID controller can achieve better control effects and meet higher control accuracy requirements. Keywords: Magnetic bearing; Intelligent PID control; Digital signal processing 1 Introduction Active magnetic bearings (AMB, hereinafter referred to as magnetic bearings) are products that integrate many disciplines and best embody mechatronics. Compared with traditional bearings, magnetic bearings have the following advantages: no contact, no friction, high speed, and high precision. Traditional bearings wear out severely after prolonged use and must be replaced. Oil-lubricated bearings have a longer service life, but oil leakage is inevitable over time, impacting the environment. Magnetic bearings avoid this problem, making them an environmentally friendly product. Moreover, magnetic bearings not only have research significance but also broad application prospects in fields such as aerospace, transportation, medical, and machining. Numerous application examples already exist internationally. For details, please click to download: Research on the Application of CNC Technology in Magnetic Bearings.