In End This Depression Now !, Krugman focuses on the economic recession faced by the US and European countries after the 2008 financial crisis. While boldly presenting his views, Krugman also sharply criticizes the views of others. Therefore, this article aims to evaluate Krugman's propositions and assess his criticism of other scholars. As a popular read, Krugman's exposition is not rigorous, but we believe there is one point that is relevant to the current Chinese economy, namely, “Economic overheating, rather than weakness, is the time to implement deflation policies. ” Krugman's book explicitly tells us this from a reverse perspective.