In this paper,the influences of different extraction conditions like extraction times,extraction time,ratio of material to liquid and water bath temperature on the extraction rate of pollen polysaccharides of water lily were studied.A 4×3 orthogonal test based on the single-factor experiment was carried out to find the best extraction conditions.And the determination of polysaccharides in this article was by phenol-sulfuric acid method.The result showed that the extraction times played the greatest influenc...