This paper gives out a design of system which can be used to design the pattern on textile fabrics. It goes without saying that innovation is playing a vital role in the design and more responsible for the popularity of products in the market, especially in the pattern CAD/CAM domain. So more and more researches have focused on how to design and manufacture patterns better. Intensifying the function of innovative pattern design has become the urgent requirement of the new generation of printing pattern CAD/CAM.This system applied advanced technology of image processing. At the same time, in order to meet the need of the fast design of the spinning industry, it took advantage of the simple menu that can realize the processing function of images and files. With a little manual operation, it can realize the design of spin and weave pattern easily. And the picture can be kept the file that spin and weave machine can identify. This paper primarily studied and introduced the BMP picture’s load and read and the arithmetic of the meshing and the disposal of the picture. Finally this thesis introduced the theories of the frame of design and the fill of the picture and the realization of some assistant tools.