Since U.S. President Obama started his 1st term in 2009, he has changed the original strategy and moved the strategic focus from Middle East to Asia-Pacific region. The idea so called “Pivot to Asia,”and renamed as Rebalancing strategy in 2011. The Strategy meant the U.S. would apply all kind of ways like diplomatic and economic policy to participate in the Asia-Pacific region. Allthe U.S. did is related to the rise of China. According to Thomas E. Donilon, he purposed 5 pillars, one of the most important one is to enhance the positive relationship with China. Because China rises rapidly and its assertive diplomacy had alrealdy caused concern. Due to the rapid rise of China, the primary goal for the U.S. is to manage U.S.-China relation, sustaining the U.S. leading status. However, there are some challenges and doubts for the U.S., fisrt, the U.S suffered from the financial crisis, it caused the cost from sending troops to the Middle East, absence from the 2013 APEC summit. Second, the U.S Rebalancing strategy seems to fight against China.It would cause strategic mistrust; it also generated difficulties in bilateral, reigional and international arena between U.S.and China. In the end, when its refers to the U.S.’ China policy under the Rebalancing to Asia-Pacific strategy, we can find that the U.S. is doing the two-pronged strategy to China, and achieve the goal of“struggle, do not break” situation. Although the U.S. and China can cooperate in some areas, in terms of the disagreement hinders the two nations to pursue further cooperation. Therefore, how to make a breakthrough for the U.S. and China? Time will prove.