A waterborne acrylic emulsion was synthesized by a special emulsion polymerization,and the baking coating was prepared based on this low VOC acrylic emulsion.The influence factors of baking temperature,baking time and the dosage of amino resin on the film performance were studied.Compared with commercial products water reducible resin and secondary dispersion was also studied.This acrylic emulsion shows comparable performance such as impact resistance and hardness,better salt spray resistance and durability,lower VOC emission.It has huge potential market and value in the baking coating application.