The struggle on protecting Diaoyu Islands' sovereignty reflected the superb art of struggle and philosophical wisdom of the Chinese government, which demonstrated mainly the correct understanding and taking advantage of the identity and struggle between the contradiction reflected in the things, which sought common ground and reserve differences on them, and pursued the mutual benefits and win-win strategy. Under the severe and dangerous circumstances when Japan attempted to steal Diaoyu Islands, one of our inherent territories, Chinese people faced bravely the conflicts, dared to struggle, and grasped the initiative. With the proper use of and grasp a few pairs of the philosophical categories, we fully exposed the reactionary essence of Japanese right-wing, and deal with the dialectical relationships between the emotional and rational, peace and military so that we could keep the rational, beneficial and restrained. Chinese people took advantage of the universal law that all things are connected and called for the international support.