Abstract: In order to realize the simulation function of jacquard pile fabric in the computer. A simulation method of jacquard pile fabric based on texture synthesis is put forward. Through the understanding of the characteristics of texture image, the jacquard pile fabric’s texture characteristics are concluded; Then, the model and the principle of texture synthesis algorithm are further studied; then, using mathematical method describes the simulation of jacquard pile knitted fabric problems; On this basis, the simulation process of jacquard pile knitted fabric is explained in this paper, and jacquard pile knitted fabric texture synthesis algorithm based on the grain growth and grain filling are put forward; Finally, the simulation step of jacquard pile knitted fabric are introduced, and shows the simulation results of jacquard pile knitted fabric are shown.