Abstract:In order to study the effect of harvest time and storage period on the storage quality of apple fruit，nutrition index and volatile aroma components of Red General Fuji apple in Yantai were determined.The sample of different harvest time and storage period were stored for 0 days，60 days and 120 days.The aroma components were analyzed by principal component analysis（PCA）and cluster analysis（CA）.The result showed that the content of soluble solids and soluble sugar of early harvest apple increased in the first 60 days of storage and then decreased during storage period，but the content of soluble solids and soluble sugar of normal and late harvest apple were decreased significantly during storage period.The content of titratable acid and vitamin C were decreased significantly in all the storage period，but the content of total phenols were decreased in the first 60 days and then increased.Both the quantity and concentration of aroma compounds in early and normal harvest apple improved obviously stored for 120 days，but the quantity and content of aroma compounds in late harvest apple had no significant difference compared with the apples stored for 0 days.The alcohols，aldehydes and esters changed obviously during storage period which determined the composition of the apple aroma components to some degree.