Abstract: A new approach for designing fabric weave,which is different from traditional one,is proposed based on the theory of L-system with four leaves broken twill and 5 end satin as examples.The chain-language of L-system and computer graphics techniques are utilized to draw a kind of new weave,called fractal weave,which has a self-similar property and a multilevel structure.Then some practicable fractal weaves are drawn with other proper weaves filled,which have some fabric effects differed from traditional ones.And some jacquard weaving experiments are made by using electron jacquard loom,and a preliminary study of fabric effects obtained from the fractal weaves is performed.