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As rapidly urbanization, Building energy consumption in western China keeps rapidly upward trend.The key to control this trend is the development of regional low-energy buildings.Research on low-energy construction experience of "practical" traditional dwellings, such as Loess Plateau traditional cave-houses, Yunnan adobe houses, Yinchuan desert residential building, traditional dwellings in Sichuan disaster areas have been taken as basic prototypes.By site-examinations and simulation analysis, with integrated use of wall heat preservation and insulation, passive solar, natural ventilation cooling, thermal storage constructed technology etc., the design parameters of low-energy thermal environment has been established.Four kinds of typical model of low-energy buildings are designed and practiced by projects.In conclusion, new traditional dwellings with low-energy consumption have key effect and appropriate to the sustainable development in western China.