Abstract:To provide an applicable method for comprehensive evaluation of fruit nutrient quality, 14 key nutritional indicators were selected by comparing and analyzing Chinese intake of dietary nutrients and the satisfaction degree of their needs. Among which vitamin A, vitamin B1, vitamin B2, vitamin C, vitamin E, calcium and selenium were significantly inadequate nutrients, protein, niacin, potassium, magnesium and zinc were inadequate nutrients, and fat and sodium were excessive nutrients. Combined with the corresponding nutrient content levels of various fruits, the fiducial values of key nutrients content were calculated. The nutrient quality index of key nutrients for fruit products was obtained by comparing the contents of key nutrients with the corresponding fiducial values. According to the deficiency and excessiveness degree of Chinese dietary intake of various key nutrients, the weight of the nutrients was determined and composite nutrient quality index for fruit (CNQIF) model was established. According to the distribution of CNQIF for representative fruits, the grading standards were established. The comprehensive evaluation results of nutritional quality of 48 representative fruits by using CNQIF model showed that 1 fruit of 5A grade, 2 fruits of 4A grade, 1 fruit of 3A grade, 5 fruits of 2A grade, 9 fruits of A grade, 12 fruits of B grade and 18 fruits of C grade. CNQIF and grading standards can reflect the nutritional quality of fruits comprehensively, and can be used for nutritional quality comprehensive evaluation and comparison of fruits (such as different species, varieties and sources), setting nutrient quality standards of fruit products and guiding consumption (especially suitable for Chinese consumers), etc.