Abstract:Bionics, an artificial imitation of natural products, has always been a forever dream in the fairy tale or scientific fiction when we were childhood and children live now. However, the development of science in molecular scale makes this dream of childhood and manhood realize today. Such a typical bionic surface, so called "Lotus-effect", is a symbol or a totem that scientists can develop one-step approach to prepare desired polymer surface and to control its microstructure or morphology at one’s pleasure. The bionic polymer surface is prepared by the formation of multi-molecular micelles of polypropylene-polymethylmethacrylate block copolymer(PP-b-PMMA) in N, N’-dimethylformamide selective solvent. Similar polymer surface is made by one-step casting method of poly (methyl methacrylate)(PMMA) and fluorine-terminated polyurethane (FPU) solution under ambient conditions. The biomimetic micro-nano binary structures, similar to lotus leaf microstructure, are formed on the polymer surfaces. Excellent surface properties are given for these bionic polymer surfaces.