Abstract：
Through the field investigation of fire prevention, energy conservation, lighting, ventilation, waterproof, siting, defects and prevention of raw-soil cave houses in China, the experience and problems of design, construction, use and maintenance are analyzed. The investigations show that the raw-soil cave houses have a good performance in fire protection and energy conservation; the existing waterproof measure is effective; lighting and ventilation need improving; there are many kinds of defects need to prevent and maintain. Raw-soil cave house deserve further research and development but there are too much problems must be solved as soon as possible.
