Construction industry is the important material production sectors with the national economic development, improving people's lives are closely related. China is in transition from low-income countries to middle-income countries, the development of the transitional phase, the construction industry growing fast along with China's rapid economic development, modernization and construction equipment, has become the modern buildings of architectural quality and an important indicator of the level of . Building Water Supply and Drainage project construction equipment is an important part of the quality of water supply and drainage engineering and design of direct decision of the Construction Health and comfortable, economical, safe and secure living and working environment is good or bad this article will outline the construction of macro- drainage works and building water supply and drainage areas in the construction of the role and status and, ultimately, the formation of a water supply and drainage of the building with a basic understanding of a reasonable sum