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The present application relates to a kind of grape seed fermentation raw pulp skin care product and its preparation method and application.The preparation method includes that grape seed powder is mixed with water after cellulase and pectinase enzymolysis, then access lactic acid bacteria fermentation;When the fermentation liquor reaches specific pH and free lactic acid content, first add alginic acid oligosaccharide and sodium phytate, stir then add gluconolactone and low-substitution hydroxypropyl cellulose, continue fermentation, sterilization and filtration, obtain grape seed fermentation raw pulp;Then the raw pulp is mixed with humectant, thickening agent, preservative aid and water, and skin care product is prepared.The present application is controlled by two-stage during fermentation ripening stage, so that oligomeric procyanidins, organic acid salt and ripening control component form relatively stable dispersion state, reduce the risk of fine sedimentation, kneading mud and uneven coating film rubbing when applying after hard water cleaning.