The invention relates to an apple polyphenol extracting method, in particular to an apple polyphenol preparation method. The invention solves the problems of low extraction rate, poor activity and complex production process of the traditional apple polyphenol extracting method. The apple polyphenol extracting method comprises the following steps: selecting apples, crushing, pulping, extracting by a highfield, separating extract liquor by an ultracentrifuge, removing residues, concentrating by a vacuum wiped thin film, drying by vacuum freeze drying equipment to obtain freeze dried powder of apple polyphenol, and respectively adding blueberry anthocyanin, vitamin C and seabuckthorn flavone to prepare a nutrition enhancer. The apple polyphenol prepared by the invention is a natural extract without side effects on a human body, has functions of strengthening the immunity, resisting tumors, reducing blood fat, resisting coagulation and thrombus, reducing the weight, beautifying the skin and the like, and can be applied to the fields of foods, health care products, cosmetics, medicines, biochemical industry and the like.