In the north, it is convenient to show the function of adjusting temperature and humidity and the heat preservation and energy saving performance of wooden houses. 1. Wood is a porous material with low thermal conductivity, which is a poor conductor of heat and has the function of regulating indoor temperature. Therefore, the wooden house makes people warm in winter and cool in summer, which is just suitable for the weather in the north, and it is heat preservation and energy saving, which is unmatched by other materials. 2. The humidity control function of wood-frame houses is one of the unique features of wood-frame houses, and the moisture absorption and release function of wood itself directly alleviates the indoor humidity change. The comparative study between concrete houses and wooden houses shows that the annual average humidity of wooden houses is 8- 10% lower than that of concrete houses, and the range of change is about 60-80%, which is the closest to the index of relative humidity of the best living environment of about 60%. Therefore, wooden houses can effectively alleviate the discomfort caused by dry weather. Third, the northern climate is dry and windy, which is prone to fire. There is no static electricity in the wood, and the dustproof and flame retardant characteristics of the wooden house just play a role.