Abstract: Milling vibration problems can increase tool wear and reduce part machining accuracy， the suppression of which is a hot research topic in the field of milling. In order to suppress forced vibration in milling and enhance the stability of the machining system， a spindle-tool system is proposed based on electromagnetic actuators technology. The electromagnetic actuators are mounted in the spindle-tool system and acts on the toolholder position， using its controlled electromagnetic force for vibration suppression.Firstly， the structure and working principle of the system is described and the milling dynamics of the system is modelled. Secondly， based on the working principle of electromagnetic actuators， a PD controller is designed and the dynamic model and controller are simulated and verified. Finally， machine vibration signals are collected and external excitation experiments are carried out on a rotor test bench simulating tool process. Simulation and experimental results show that the spindle-tool system based on electromagnetic actuators under PD control law can effectively suppress the forced vibrations during the milling process.