Abstract: A unified and open national domestic market can enable the market to play a decisive role in the process of resource allocation. Anti-monopoly law enforcement and fair competition examination system are important measures to promote fair competition in the market and key measures to break administrative monopoly. The former belongs to ex-post regulation, while the latter tends to ex-ante regulation. The weak linkage between anti-monopoly law enforcement agencies and policy-making subjects, low enthusiasm of fair competition policy examination subjects for self-review due to the lack of external promotion mechanisms, and inadequate implementation of duties of the fair competition examination joint meeting office are the difficulties that exist in the linkage mechanism. In order to promote the establishment of a linkage mechanism between anti-monopoly law enforcement and fair competition examination system, so as to optimize the market business environment and help build a unified domestic market, it is urgent to strengthen the linkage between anti-monopoly law enforcement agencies and policy-making subjects, and improve the promotion mechanism of fair competition examination system, and consolidate the duties of the fair competition examination joint meeting office.

Key words:  fair competition examination, a unified domestic market, anti-monopoly law enforcement, improve the business environment