The object of the present invention is to provide a degradable composite material that contains at least one type of polysaccharide selected from chitin and chitosan, and has self-degrading capability. By supporting an enzyme capable of hydrolyzing chitin and chitosan on a molded article containing at least one type of polysaccharide selected therefrom, the polysaccharide can be slowly degraded in an environment where moisture is present such as a living body.