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Based on climate characteristics of light, temperature, water, diseases, and climate, the adaptability and superiority of Pinggu peach are analyzed from the aspects of geographic features, soil and water resources, winter freeze injury, spring frost, blossom pollination, fruit bearing periods, diurnal temperature ranges, disease conditions, etc. The results show that peach planting in Pinggu has superiority geographically and climatically, without winter freeze injury and almost without spring frost. Compared with Daxing, Pinggu has obvious superiority in peach blossom pollination, favorable days during the fruitbearing period and unfavorable high temperature days, diurnal temperature ranges, and diseases. Pinggu’s climate is most favorable for planting peach than other areas in Beijing.