Urban function is an important benchmark factor in the selection of urban leading industries and the evolution of industries. There are regular characteristics of co-evolution between urban industries and urban functions. Under the restriction of regulations，the industrial positioning of the core functional areas of the capital should be in line with the functions of the capital. Adhere to the development principles of reduction and intensiveness，innovation and leadership，and green and low carbon，and unswervingly unceasing non-capital functions. It is necessary to moderate development of modern financial industry，modern service industry，high-quality cultural and tourism industry，and high-quality living service industry in line with the functional positioning of the capital. Guide the existing industries in the core area to transform and restructure，reorganization and upgrade，and improve quality and efficiency. Promote the optimization and reorganization of the core area’s industrial structure and urban spatial structure. It is time that promoting high-quality commercial development in core areas and optimizes and upgrades traditional commercial areas. It is time that promoting the international development of industries in core areas and enhance the industry’s international competitiveness.