Abstract: The main structure and working principle of the dual-station multi-wire saw are introduced. Based on the EtherCAT bus, the virtual spindle control strategy analyzes two dynamic torque balance control algorithms. To address the dynamic stability issues of speed and torque during the working process, a dynamic switching control strategy between speed mode and torque mode is proposed, and the corresponding control algorithm is designed to achieve stable cutting operation of the dual-station model. Finally, the synchronous control algorithm is verified through experiments, and the results show that this algorithm significantly improves the cutting accuracy and operational stability of the dual-station multi-wire saw.