Preparation method of glycerophosphatidylcholine

The invention discloses a preparation method of glyceryl phosphatidylcholine, which belongs to the technical field of glyceryl phosphatidylcholine synthesis, and comprises the following steps: S1, extraction: taking 1 part of natural phosphatidylcholine powder and 2-4 parts of absolute methanol, putting into a stirrer, stirring and mixing to obtain an extraction solution, putting the extraction solution into a filter press, and filtering to obtain filter residues, repeating the steps twice on the filter residue to obtain a crude natural phosphatidylcholine solution; s2, stirring: putting the obtained natural phosphatidylcholine solution and anion exchange resin into a stirrer, and stirring to obtain a stirred solution; s3, washing: filtering the stirred solution prepared in S2, and washing the resin with absolute methanol to obtain a purified solution. According to the present invention, the glyceryl phosphatidylcholine is directly produced from the commercially available natural phosphatidylcholine powder, t