Abstract: In order to study the Brasinia schreiber polysaccharides decolonization condition,the decolorization capability of different kinds of resins was compared taking decolorizing rate as major selection standard. Then through the single factor experiment and orthogonal experiment of resins species,decolorization temperature and decolorization pH,the decolorization process parameters was optimized. The Result showed that NKA-9 resin had the best decolorization ability,under the decolorization temperature 55 ℃ and pH was 4,the decolonization rate of the Brasinia schreiber polysaccharides solution reached 79.22%,the Brasinia Schreiber polysaccharide retention rate was 67.54%,the protein removing rate was 55.75%. The decolorization process was simple,the effect was good,could be used as a decolorization method of Brasenia schreberi polysaccharides.