Recently, the CPC Central Committee and the State Council issued the outline of the Yangtze River Delta regional integration development plan, which defined the planning scope, strategic positioning and development objectives of the Yangtze River Delta regional integration development, and required the Yangtze River Delta to achieve higher quality integrated development. After analyzing the current situation, this paper draws the following conclusions:■ At present, China's super large market is only a potential advantage. The current domestic market is not a unified market, but a fragmented market. It is a market formed under the pattern of "administrative region economy".■ The difficulty and key to promoting market integration in the Yangtze River Delta lies in the governance mechanism. We should take competition policy as a means and mechanism to promote the high-quality development of regional market integration in the Yangtze River Delta, and encourage the cooperation and coordinated development among local governments.■ In the process of promoting regional market integration in the Yangtze River Delta, we should start with specific projects in the region, avoid general and abstract discussions, and pay attention to giving full play to the main role of enterprises, especially enterprise groups.
