Abstract: Maleic rosin pentaerythritol ester with light color and high softening point was prepared from refined rosin，maleic anhydride and pentaerythritol. The effects of different reducing agent，catalyst，color-reducing agent，raw material ratio and reaction time on the product performance are emphatically discussed. The optimized condition was obtained through experiments. The proper amount of maleic anhydride，reducing agent SHHP，catalyst R-1 and color-lighting agent M-6 are 13%，0.3‰，3‰ and 3‰ of the refined rosin，respectively. The addition reaction time of maleic anhydride with the refined rosin is 60 min，and then the esterification time with pentaerythritol is 150 min. The product produced under the optimized condition has a Gardner color of 3，an acid value of 9.8 mg/g and a softing point of 159 ℃.