This article summarizes the anti-monopoly law enforcement and cooperation carried out by anti-monopoly law enforcement agencies during the past three years since the implementation of the Anti-Monopoly Law, especially in the year 2011, including the prohibition of price-fixing, monopoly agreements other than price-fixing, abuse of market dominance position, excluding and limiting competition by abusing administrative power, and concentration of business operators. The author points out the shortcomings and forecasts future development in the enforcement of anti-monopoly law in China. <<