In 2014，the Ukraine crisis，ISIS，and the East and South China Seas attracted the attention of the international community. With the involvement of the major powers，the conflicts had significant and far-reaching influences on international political and economic patterns. Compared with Sino-Russian relations，which involved frequent summits and interactions，due to the situation in Ukraine relations between the United States and Russia were at their worst ever since the end of the Cold War，and EU-Russian relations also were becoming increasingly estranged. The “new type” of Sino-U.S. relations is still facing many challenges，such as the issues in East and South China Seas and cyber-espionage. China’s border security situation remains tense but controllable. In the face of this complex regional and international environment，China’s diplomacy has become more flexible and pragmatic，putting forward innovative thinking and new ideas on summit diplomacy，border diplomacy，and regional cooperation.