Method for synchronously preparing high-purity oleuropein and galuteolin

The invention discloses a method for synchronously preparing high-purity oleuropein and luteoloside, which is a method for synchronously preparing the high-purity oleuropein and luteoloside by combining macroporous resin with preparative liquid chromatography, and comprises the following steps: by taking olive leaves as a raw material, synchronously separating the oleuropein and the luteoloside through the macroporous resin; the oleuropein content and the luteoloside content of the extracts are respectively greater than 45% and 4.5%, and then the oleuropein content and the luteoloside content of the extracts are synchronously prepared by using preparative liquid chromatography, wherein the oleuropein content and the luteoloside content of the extracts are greater than 90%. According to the method, oleuropein and galuteolin with the content larger than 90% can be synchronously prepared from the olive leaves, and the total yield of oleuropein and galuteolin in the whole process is larger than 70%. The method is