Three allyl-type maleate diesters have been synthesized，use three long-chain fatty alcohols (octanol, dodecanol, tetradecyl alcohol), maleic anhydride, allyl chloride as the main raw material. By orthogonal and single factor experiments, the optimum reaction conditions were obtained as follows, single-esterification reaction, n (maleic anhydride): n (long chain alcohol) = 1.10:1.00, the temperature was 85 ℃, the time was 2h; double-esterification reaction, n(octyl sodium salt of maleic acid monoester) : n (allyl chloride) = 1:2.5, the temperature was 60℃, the time was 7h, n( Dodecyl sodium salt of maleic acid monoester) : n (allyl chloride) = 1:2.0, the temperature was 60℃, the time was 6h, n (tetradecyl sodium salt of maleic acid monoester): (allyl chloride) = 1:2.0, the temperature was 65 ℃, the time was 6h. The products of each step were characterized by IR and 1HNMR.