The Central Business District, originally originated in the United States in the 1920s, means commercial convergence. In the 1950s and 1960s, in the developed countries, the manufacturing industries in the central area of the city began to relocate, and at the same time, business and office activities continued to gather in the central area of the city. Some large cities were required to re-plan and build on the basis of the old commercial centers. A modern business center area with a certain scale. Manhattan in New York, La Defense in Paris, Shinjuku in Tokyo, and Central in Hong Kong are all well-developed business centers in the world.