Abstract: In order to screen peach varieties with the best comprehensive characters and suitable for local largescale production,this paper took 618 peach,48 nectarine,Ruipan 21,Jingqing 16,Xiahong and No.8 peach varieties as experimental materials to observe their growth and fruiting performance in Yili River Valley,and analyzed the performance and planting prospect of different varieties in this area from the aspects of phenological period,fruit appearance,internal quality and adaptability.The results showed that the cold resistance of Jingqing 16,Xiahong and No.8 peach was the worst according to the natural overwintering performance in the field.It was preliminarily considered that Ruipan 21,48 nectarine and 618 peach had the prospect of popularization and application in Yili River Valley and could be used as local peach varieties.618 peach has excellent comprehensive characters,bright color,hard solute,good fruit flavor,outstanding variety characters and storage and transportation resistance.Although Ruipan 21 is not fully colored,it can be supplied to the national day and Mid Autumn Festival markets because of its sweet and crisp quality.48 nectarine has good flavor quality,crisp,sweet taste and good coloring,which has good market development potential.