This machine is a new generation of intelligent computer flat sewing machine, using touch screen, simple tap input with fingertips, sewing function can be easy completed. Touch screen operation setting is simple, a large number of easy to understand illustrations icon, can be intuitive operation. Step backward sewing function, can directly adjust the size of needle distance through the touch screen and can set a variety of patterns sewing mode with front and back thread function to make the sewing quality higher and futher expand the scope of sewing, suitable for denim, yarn and other fabrics sewing.