Machine features: The main frame is made of cast iron, supplemented by a reasonable reinforcement structure design to reduce deformation and increase rigidity; The needle selection system is flexible, and various fabrics with unlimited pattern range can be knitted; The needle selection distance space of the eight-stage needle selector can meet the requirements of high-speed operation of the machine; This machine adopts computer needle selector to select needles on the needle cylinder. The computer needle selector can select needles in three power positions: loop forming, loop gathering, and floating thread. The process pattern of any complex tissue structure can be converted into special control instructions through the computer pattern preparation system. These commands control the needle selector on the knitting machine to knit a single-sided jacquard fabric, and the bottom of the fabric is knitted by two-track needle rows on the needle plate;