This product type is fatbed body, using straight needle to sew fabrics, connecting rod or side rod for thread take-up, double verical rotary shutle hook forthread and bottom compound needle feed. Using computer control system, servo motor direct drive,stepping motor control stitch length and other multi-axislinkage technology, according to the Angle calculation, distibution for needle numbers and stitches length, realize automatic corer sewing, decorative stitchsewing, needle stop posiion, automaic thread culing, automatic thread wiping, count sewing and automaic front and reverse bar-tacking sewing and otherfunctions.