Abstract:The changes of main nutritional components and quality of Nankang sweet pomelo after harvest were studied during storage at normal temperature.As the storage getting longer，the content of total sugar and soluble solids first increased and then decreased.The fluctuated changes of the total acid content were shown.The sugar-acid ratio increased significantly，but the vitamin C content decreased continuously，and the content of calcium and phosphorus remained substantially unchanged.Meanwhile，the soluble protein content showed an increasing trend in the first 40 days，stable in 40 to 80 days，and showed a unilateral downward trend after 90 days.When the nutritional composition and quality of Nankang sweet pomelo during storage were comprehensively considered，the results showed that the nutritional components and quality of Nankang sweet pomelo are better when stored for about 40 days.