A series of frictions and conflicts caused by significant changes in the international structure have emerged between China and its neighbors during the past year. The prevalent suspicions among the border countries are taking shape because of China’s rapid rise in strength and status. Meanwhile，the territorial disputes between China and some neighboring countries are showing a significant trend and the state of military relations around China has become strained. In addition，political instability in some border countries has also had a significant impact on China’s security situation. Although conflict instead of cooperation has not become a mainstream trend，China faces serious challenges to maintain border security and stability under the new situation.