This machine adopts a direct drive energy-saving motor device with automatic foot lifting function, suitable for both thin and medium thick materials; Used for buttonhole sewing of various knitted, cotton spun, synthetic and other fabrics; Can sew flat and triangular stitches, with firm and beautiful stitches; High sewing speed, adjustable buttonhole length, width, and number of needles; Equipped with automatic lubrication system and automatic wire cutting device.