n addition, some humanized design of mechatronic sewing machine is also one of its characteristics, to make corresponding comparisons when purchasing. Such a machine is wider in the discharge part than the conventional sewing machine, so that the fabric to be sewn is easier to pick up and rotate; the bottom thread winding device is mounted on the arm, the adjustment of the winding amount and the disassembly and assembly of the bobbin are simple; It is necessary to press the button or operate the rotary pedal to work, or even fully automatic work; the easy-to-understand and easy-to-use operation panel makes the operator easy to remember and does not cause confusion when operating.