The invention provides novel low-cost polyester acrylate. On one hand, the novel polyester acrylate is obtained by mixing glycerol with other small molecules such as tripropylene glycol according to acertain ratio and then carrying out a co-esterification reaction with acrylic acid; and on the other hand, through the change of a solvent system, a certain amount of butyl acetate is added into thereaction system to partially replace toluene or cyclohexane as a solvent, so that the glyceride acrylate with good performance can be obtained. The polyester acrylate has certain hardness, and is goodin yellowing resistance, high in curing speed, good in dryness, good in flexibility, good in polishing performance, and excellent in overall coating performance.