Abstract: Different geographical environments due to diverse costumes. Based on the comparative analysis of five types’ characters of Miao costumes, combining the topography, climate, biological environment and other natural geographical factors of different regions, this paper comprehensively analysed the influence process and function of geographical environment in different types of Miao costumes. Research showed that in the generation, development and change processes, Miao costumes were directly or indirectly impacted by physical geography on shapes, materials, dress adornments, color and patterns. Constant development and change of Miao costumes, is not only pure function of covered their bodies to keep warm, but more should be as traditional national culture heritage and get enough attention and protection.