In this paper, lauroyl diethanolamine was synthesized by diethanolamine and methyl laurate catalyzed by KOH under microwave irradiation. Methyl laurate was prepared through the esterification of methanol with lauric acid which was purified from litsea cubeba kernel oil. The effect of factors on the yield were studied and the optimun reaction conditions were found. They are as follows: reaction temperature 170 ℃, reaction time 60 min, the amount of catalyst is one percent of the quality of methyl laurate, molar ratio of methyl laurate to diethanolamine is 1.6:1. Under this condition, The conversion rate of diethanolamine was 85.12%. The product was characterized by IR.% 探讨了以从山苍籽核仁油中提取出的月桂酸制得的月桂酸甲酯在微波辐射下，用 KOH 作为催化剂与二乙醇胺反应合成月桂酰二乙醇胺。对月桂酸甲酯与二乙醇胺反应条件进行优化，其优化条件为：反应温度170℃、反应时间60 min、催化剂用量为月桂酸甲酯质量的1%，脂胺摩尔比为1.6∶1。在此优化条件下，二乙醇胺转化率为85.12%。产品经过红外光谱表征。
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