Objective: To establish a method for determining polysaccharides in Cibotium barometz

then compare different place of production the content of polysaccharides in Cibotium barometz and its processed product. Method : The content of the polysaccharides in Cibotium barometz was determined by phenol-sulfuric acid method

and calculated using a conversion factor

and the determination of the wavelength was 489 nm. Result : The glucose concentration value C and absorbance A were linear in the range of 2.46-14.79 mg·L-1(r=0.999 5)

The average recovery was 98.7％

RSD 1.48％.The content of polysaccharides in Cibotium barometz from various cultivation locations varied from 2.48%-10.06%

and 5.56%-15.17% in its processed product. Conclusion : The method is simple

effective and feasible. It can be used for the determination of the content of polysaccharides in Cibotium barometz. The content of polysaccharides in Cibotium barometz which were collected at Fujian City was the highest.There is great diference in polysaccharides content in Cibotium barometz from various cultivation locations

and the content of polysaccharides was increased after processed.