It is mainly used as an additive and attractant to increase amino acids in poultry, livestock and poultry, especially pets and other edible feeds. It is used as an additive of hydrolyzed protein and a synergist of hydrolyzed protein;
In pesticide production, glycine ethyl ester hydrochloride, an intermediate used to synthesize pyrethroid insecticides, can also be used to synthesize bactericide isobenzuron and herbicide solid glyphosate.