With using silicone oil containing hydrogen and alkenyl succinic anhydride as raw materials and chloroplatinic acid as the catalyst,alkenyl succinic anhydride modified silicone was synthesized through the silicon hydrogen addition reaction.Then alkenyl succinic anhydride modified silicone was estedfied by alcohol ether.The influence of reaction temperature,reaction time and material mole ratio on degree of esterification were investigated by single factor experiment.And the appropriate reaction conditions as follows:the reaction temperature is 150℃,the reaction time is 17 h, the ratio of reactants [n (anhydride): n (alcohol ether)] is 1 : 2.6. Under these conditions, the conversion of product is 98.22%.And test the surface performance of the product.