Abstract: Tangwu is an integral part of a house,there is a profound cultural origin,but with the impact of globalization and urbanization process accelerated,few people have touched the core of their culture.Know these,I do not know why they are so since makes the destruction of the vitality of the national culture,and the urbanization lacks national identity.From the sacred and affinity two parts it is analyzed the cultural essence of Tangwu,as well as its position and role in a house of Zhenshan village,which is applied to the practice of constructions.