Since the World War II, the United States, backed by its strong economic, financial, technological, and military capabilities, has led the establishment of an international monetary system centered around the US dollar - the Bretton Woods system, making important contributions to post-war economic recovery and development. However, this system and its successor (the Jamaican system) were designed from the fundamental interests of Western countries such as the United States, which is unfair to the vast number of developing countries. In addition, the existing international monetary system has always faced inherent contradictions that are difficult to overcome, such as the Triffin problem and the Mundell impossible triangle. When the interests of the United States conflict with those of the international community, the United States will use the power granted by the existing monetary system to create a "dollar tide" and harvest the wealth of other countries. The United States often uses its control over the International System for the Settlement of Funds (SWIFT) to freeze or even deprive other countries of their overseas assets. Based on the inherent unfairness and insurmountable contradictions of this monetary system, this paper analyzes the historical inevitability of reforming the existing international monetary system and proposes strategies for orderly promoting the internationalization of the renminbi.