Abstract he synthesis method of 2,4,6-tribromophenyl acrylate with 2,4,6-tribromophenol,acrylic acid and phosphorus trichloride as raw materials are studied.By orthogonal tests and single factor optimization,the proper technological conditions are determined.The results of analysis and assay show that the expected product is obtained.The values of melting point,refractive index,bromine content,molecular weight,molecular constitution and fineness of product are also given.