Objective: To analyze the change rules of carbohydrate content in Ginseng Radix et Rhizoma root

stem and leaf from different growth period. Method: Acquisition Ginseng Radix et Rhizoma root

stem and leaf samples from the spreading stage

the flowering stage

the fruit growth stage

the root growing after fruit stage and the withering stage

ultraviolet spectrophotometry was adopted to detect the content of total sugar

reducing sugar and soluble polysaccharide in Ginseng Radix et Rhizoma. Result: The content of total sugar and reducing sugar in Ginseng Radix et Rhizoma root reached the maximum value at the fruit growth initial stage

the soluble polysaccharide content reached the maximum value at the fruit growth later stage; the total sugar

reducing sugar and soluble polysaccharide content in Ginseng Radix et Rhizoma stem and leaf had no significant change at the throughout growth stages. Conclusion: The content of total sugar

reducing sugar and soluble polysaccharide in Ginseng Radix et Rhizoma have their own variation at the different growth period

and may be closely related to the plant morphogenesis and material metabolism.