Polyglycerol fatty acid ester is a polyhydroxy ester nonionic surfactant, referred to as polyglyceryl ester, HLB value 3~13, can be used as O/W type or W/O type emulsifier, non-toxic and harmless, with biodegradable performance, is a class of efficient and safe additives. The HLB value of polyglycerides can be adjusted by changing the length of glycerol chains, the degree of fatty acid substitution, and the type of fatty acids. The main functions of triglycerol monostearate are: emulsification, viscosity adjustment, crystallization adjustment, quality improvement, antibacterial, etc. Polyglyceryl esters with high HLB values are an alternative to Tween series products for baked goods, ghee, salad dressings, frostings, fillers and vegetable fat whipped creams.