Provided is a cross-linked polysaccharide gel composition used in cosmetics and medicine fields, and more particularly, to a hyaluronic acid gel composition having durability capable of maintaining durability for a long time within a living body without increasing a cross-linked bond rate by including a material having functions of decomposition inhibition and antioxidation of polysaccharide in cross-linked polysaccharide gel. In addition, the composition is a hydro gel complex in which ursolic acid is contained in non-cross-linked or cross-linked polysaccharide.