[Objective] The aim of the research was to extract and determine the content of polysaccharide in the rattan stem of Schisandra chinensis.[Method] Polysaccharide was extracted by ultrasonic technology and the content was determined by phenol-sulfuric acid method,with glucose as the control substance.[Result] The sample concentration has a good linear relationship with the absorbance within the range of 10.125-71.064 μg/ml.And the linear regression equation was A=0.009 4C+0.002 9(r=0.999 8).The average recov...