Efficient synthesis method of stigmasterol ester

The invention discloses an efficient synthesis method of stigmasterol ester. The method comprises the following steps: adding stigmasterol, fatty acid and a metalloporphyrin catalyst into a reactor according to a molar ratio of 1: (1-2): (0.01-0.05), and carrying out catalytic esterification reaction to obtain an esterification product; and filtering the esterification product, adding a PBS buffer solution to neutralize to be neutral, carrying out adsorption purification, adding the purified product into a column for chromatography, eluting with an eluent, carrying out vacuum concentration to recover the eluent, and drying to obtain stigmasterol ester. The synthesis method disclosed by the invention not only has the characteristics of high stigmasterol ester conversion rate and high product purity, but also has the advantages of easiness in catalyst recovery, no toxicity, harmlessness, environment friendliness, high production efficiency, simple process, low production cost, less discharge of three wastes and