Hydrogenated starch hydrolysate (hydrogenated starch hydrolysates) is a polysaccharide compound obtained from starch hydrogenation treatment and enzymatic reaction. It has a certain molecular weight range and can prepare hydrogenated starch hydrolysates with different molecular weights according to the needs. Hydrogenated starch hydrolysate has good solubility, stability and thickening, and can be used in food, medicine, cosmetics and other industries.