The Diaoyu Islands issue is important and sensitive，having a lasting impact on the security environment of China and Japan and the development of Sino-Japanese relations. In order to ensure national interests and obtain security strategic objectives，the Abe administration works on the strategic layout relating to the Diaoyu Islands，enhancing the self-defense capability and promoting Japan-US alliance to build an effective defense system. Japan，aiming at ensuring the advantage over China in the competition. attempts to establish the predominance of U.S-Japan alliance over the Diaoyu Islands and their surrounding waters. Based on its national security strategy，Japan’s objectives relating to its Diaoyu Islands policy are to consolidate the actual control the islands，seek to become a “normal state” and establish the “alliance of values” in response to China’s peaceful rise.