This extracellular polysaccharide of lactic acid bacteria, which are derived from fig and belong to Lactobacillus paracasei, is useful for foods and drinks, medicines, fodders, cosmetics, etc., which exhibit anti-allergic effect and the like because the extracellular polysaccharide contains a neutral polysaccharide having a structure in which N-acetylglucosamine is linked by an a-1,6 bond, and has a hyaluronidase inhibitory activity.