Oil-tea camellia husk polysaccharide and application thereof

The invention discloses an oil-tea camellia husk polysaccharide which has the following characteristics: a. physicochemical properties: the polysaccharide is brown powder with small odor and is easily-soluble in water and not soluble in organic solvents such as chloroform and ether, the polysaccharide is orange if reacting with phenol-sulfuric acid, shows a negative reaction with Fehling reagent and shows a negative reaction with iodine-potassium iodide; b. composition of the polysaccharide: the content of the polysaccharide is 30 percent to 50 percent; the distribution range of molecular weight is 7,000 to 200,000,0Da; the polysaccharide is prepared by the following six kinds of monosaccharide: glucose, fucose, arabinose, galactose, seminose and rhamnose. The oil-tea camellia husk polysaccharide is used as free radical scavenger or used for preparing medicaments with anti-tumor function for curing tumors.