Abstract: 【Objective】 To study the fruit quality of sweet cherry in Aksu region in southern Xinjiang and to provide reference for the optimization and sustainable development of sweet cherry varieties in Xinjiang. 【Method】 The exterior quality, physical and chemical properties, nutritive elements, phenolic substances and other fruit quality of sweet cherry variety of "Early Big" and "Sunburst" were determined and evaluated in fruit maturity period. 【Result】 The natural characteristics of "Early Big" and "Sunburst" were obvious, and they were rich in 10 nutrient elements, such as K, Mg, Ca, Na, Fe and P. There were 20.33 % soluble solid, 21.09 % total sugar, 30.49 mg/100 g VC, 2.68 mg/g total phenols and 1.28 mg/g anthocyanin in "Early Big". There were 18.59% soluble solid, 17.54% total sugar, 35.10 mg/100 g VC, 0.74 mg/g total phenols and 0.03 mg/g anthocyanin in "Sunburst". 【Conclusion】 The fruit quality of sweet cherry varieties "Early Big" and "Sunburst" in Aksu in southern Xinjiang is super. The region is suitable for the development of sweet cherry industry.