As a product of China’s social and economic development to a certain stage，the building economy has certain particularity. In recent years，the concept of building economy and standardization of building economy has appeared successively in China，and some of the more developed cities are gradually exploring the “standardization of building economy”. Through sorting out the process of standardization of building economy in Beijing，Chengdu and Guangzhou Tianhe CBD，the experience of reference can be summed up，that is，to improve the standard of building grade construction，to establish the building construction plans gradually，to strengthen the economic management and service of buildings，to strengthen the modernization of building economy，and to reduce the cost of building operation and so on.