[Objective] To study the antioxidant activity and antibacterial activity of pea polysaccharide(PP).[Method] The antioxidant activity of PP was detected by using the methods of Fenton,Tris-HCl and DPPH;the method of filter paper diffusion was adopted to measure the in vitro inhibition effect of PP against Sarcina lutea,Proteus vulgaris,Staphylococcus auteus and Bacillus subtilis.[Result] PP could remove hydroxyl radicals,DPPH radical and superoxide anion radical,but its removal effect was weaker than Vc;PP h...