Objective: To address how to digital design with the characteristics of ethnic minorities in Xinjiang is a challenging problem. A method is put forward to evolution and combination primitive genes to regenerate gene and the introduction of morphing technology to fast generate with similar national style design genes. Methods: first, definition the concept of primitive gene and regeneration gene, to propose a primitive genetic generating method. Then, by setting the formation parameters of the regenerative gene, combine primitive gene to arrange regeneration gene which inherit the national significance. Finally, using the image morphing technology expand the pattern genes. Experimental results: a variety of patterns are generated by primitive gene and regenerative gene. Conclusion: proposed method is closely keeping the national style of design, it has the nice generalization ability and a promising future in the digital design fields and it is simple and easy in operation and can be widely popularized. So it can lay the foundation for auto-genetic pattern genes to establish folk design.