Such machinery have many kinds of intelligent sewing modes, like automatic needle stopping, automatic thread cutting, automatic thread-wiping, automatic needle positioning, automatic stitch-setting sewing and automatic bartacking. The innovated thread-taking-up mechanism enlarges the application scope of the machine so that sewing materials of different thickness can be sewn, including the adhesive compound materials. Stitches are beautiful and stable. The thread-cutting operation is stable and reliable. After the thread cutting, the thread residues are clean and tidy. They are particularly applicable to short-seam processes, like the sewing of brands, pockets and cuffs, realizing a perfect sewing effect.