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The traditional manual control technology is influenced by man-made factors, and inertia error occurs in the process of wiring arrangement, resulting in poor control efficiency. For the high-efficiency operation of automatic transformer winder, The research on servo automatic cable control technology is put forward. According to the main equipment of winding machine, the cause of tension is analyzed. Using the Mitsubishi servo driver, the transmission pulse frequency is changed according to the pulse command sent during execution, and the enameled wire mechanism is rotated following the winding machine main shaft within a specified time, thereby obtaining the wiring timing chart. According to the time sequence diagram, the specific wiring arrangement scheme is designed, and the inertia compensation coefficient is determined by debugging, which ensures the smooth movement of the winding, improves the inertia error and realizes the constant tension control. The test results show that the highest control efficiency of this technology can reach 90%, which can guarantee tension control and axial tightness of coil winding.