As we all know, steel building is a new construction system, it is possible to open up the real estate, construction, metallurgy, machinery and equipment manufacturing, green building industry, new materials industry, industrial disaster prevention and mitigation, environmental protection and other sectors of industry boundary between the collection as a new recycling building industrialization industrial system. To promote steel construction, both effective solution to China's steel industry overcapacity problem, but also can stimulate domestic demand through urbanization, improve the quality and the quality of construction projects, achieve high efficiency, the recycling of resources. "Plan" clearly put forward the promotion suitable for industrial production of steel and other building system, speed up technological development and assembly of prefabricated construction engineering, building industrial technology to improve the level of integration; support industrialization base construction set design, production and construction in one, to carry out industrialization building demonstration pilot, and proposed quantitative targets, determine the incentives. There is no doubt have a positive influence on the development of steel industry. Recycled steel building is through the "reduction, reuse, recycling, reduction of priority," the principle of circular economy development in their whole life cycle, fully taking into account the carrying capacity and ecological carrying capacity of the project. Steel building to meet building function to the maximum extent while minimally affect the environment, will not create a kind of resource depletion, but also will not cause environmental pollution and ecological damage, all kinds of resources can be recycled new urbanization Construction of the new model. At the same time, industrialization, standardization and industrialization of production can also build a recycling-oriented industrialization industrial system building. All along, the steel structure is known as an important representative of green building, it has been widely used in developed countries. Especially in the high-intensity earthquake country (region), accounted for a higher proportion of steel construction building proportion of the total. For example, Japan's steel building under government-led, now accounts for about 1/3 of the total construction. Data show that as of the end of 2008, China's 590,000 bridges steel bridges in less than 1%, while the 600,000 bridges in the United States Steel Bridge accounted for 33%, Japan 130 000 bridges steel bridges accounted for 41%. Thus, the steel industry has a broad space for development.