Abstract: The characteristics of 9 Citrus paradisi cultivars introduced into Puwen County,Yunnan Province were comparatively studied.The results showed that the average sugar contnet in the fruit of these cultivars was 5.49%,which was on the common level.The average acid content was 1.20%,which was higher than that of contained in the local cultivars.And the vitamin C content was 26.43 mg/100 mL,the content of soluble solid materials was 8.7%.Taking the contents of the soluble sugar,acid and vitamin C as 3 target evaluation factors,the comprehensive evaluation on the fruit quality of the 9 introduced cultivars was made by means of the rationalization-satisfaction indices integrated with multi-dimensional value theory.Some of the cultivars were set suitable to be cultivated around the experimental plot and its peripheral areas.