Abstract: Vernacular buildings contains a lot of ecological theories and techniques, after analyzing and investigating Liu Qingxia’s vernacular building sited at eastern Henan of its  layout, space form, structure and material, and energysaving technology. It was found that it has the following ecological energy saving features: house eaves gallery and open courtyard creating the osmotic, the ecological environment of the natural ventilation; using local materials,  ecologically energysaving and low cost, little pollution; three segment elevation of the former causing  the reasonable structure stress; residence hall and main roof  ceiling, wall thick,  reducing heat loss, and good energy saving effect. Finally, its reference and enlightenment significance for the modern ecological architecture design was presented.