Computer controlled sewing machine, also known as computerized sewing machine, is an important achievement of modern sewing technology. Computerized sewing machine adopts computer precision control, which can achieve high-precision sewing operations, uniform and beautiful sewing lines, and excellent sewing effects. This is particularly important for industries that require high-quality sewing products. The computer sewing machine can automatically complete the set sewing work, including automatic edge sewing, automatic adjustment of thickness and seam tension, automatic speed change, automatic torque change, automatic thread cutting, automatic needle patching, etc. These functions greatly reduce the labor intensity of operators and improve production efficiency.