Using the built-in servo motor, realize machine rapid starting and braking accuracy; Greatly reduce the noise and vibration, and redcing energy consumption, compared the ordinary driving device, the power consumption is reduced by more than 35%, suitable for sewing all kinds of shirt, suits or similar garments, especially the collars, front and other parts, high-speed sewing reverse feeding needle distance can keep consistent. The side cutting knife device is a sewing and trimming process, and the work efficiency is improved.