Abstract: Anti-fatigue effect of polysaccharide from moso bamboo leaves were observed in the research. Mices were randomly divided into group of low-dose of PMBL, group of middle-dose of PMBL, group of high-dose of PMBL (stomach irritation with 200, 400, 600 mg/kg bw PMBL respectively) and normal group( stomach irritation with saline only). After 10 days, recording loaded swimming time of mice, determineing activity of lactic dehydrogenase, liver glycogen, muscle glycogen and blood urea nitrogen by kit. Results showed that a certain dose of PMBL could extend swimming time, decrease the content of blood urea nitrogen, increase the activity of lactic dehydrogenases, obviously increase reservation of liver glycogen and muscle glycogen. conclusion polysaccharide from moso bamboo leaves has good effect on anti-fatigue.

Key words: moso bamboo leaves, polysaccharide, anti-fatigue