Method for preparing phytosterol oleate

The invention discloses a method for preparing phytosterol oleate. The method comprises the steps of adding phytosterol and oleic acid according to the mass ratio of 1:1.8-3 in a reaction system in which methyl alcohol serves as the solvent, mixing and treating the phytosterol and the oleic acid as raw materials, adding in DMAP as a catalyst, and conducting the esterification reaction under the stirring condition of 80 DEG C; conducting the molecular distillation on a mixture after the esterification reaction is completed, maintaining the molecular distillation temperature at 170-200 DEG C, separating out excessive oleic acid, meanwhile, removing the DMAP through thermal decomposition, and obtaining the purified phytosterol oleate. According to the method for preparing the phytosterol oleate, the phytosterol oleate is prepared by the adoption of the carboxylic acid acylation and esterification method, and the problems that the esterification reaction is slow, product purification is difficult to conduct, and the yield is low can be effectively solved.