| Recently, the friction between China and Japan, after " fit large line ", " Ann receive the line " tubing ", about demarcating and disputing have become one of the contradiction focuses of China and Japan again in Sino-Japanese problem about East Sea.since 2004, China and Japan have diplomatic negotiated and on a series of bilateral demarcated the question around East China Sea. During the negotiation, both sides have much difference, among them the most difference is that demarcation principles that both sides maintain difference. China maintain, " extend naturally " principle, but Japan maintain, " equidistant medium line " principle divide Sino-Japanese the continental shelf and exclusive economic zone of East Sea " naturally. East Sea of China continental shelf concern both of core strategic interests, as two energy-consuming big countries can't give up they may try interests that reach easily, but the position on demarcating in East Sea of China and Japan is completely different, and then two countries untrust each other for a long time, so East Sea of China continental shelf disputing won't avoid problem even very thorny. The article analyse international law on the continental shelf in East Sea of China, and prove the "extend naturally" science and " equidistant medium line " applicability of principle Japan insist of principle that China insist. The article combines the analysis on concrete case that the ocean demarcate in the world over the years in terms of international political relation, and probes into the Sino-Japanese settlement route of demarcating the dispute of East China Sea seeking to jointly develop the win-win road to the continental shelves resources in East Sea of China in two countries and helping to promote the friendly connections between our country and surrounding.The battle of Sino-Japanese propoblem about East Sea is not only influent the sound development but also effect the present relations, the peace, stability and development of east Asia and even all over the world. Sino-Japanese should face the realistic choice that two countries ," suspend dispute, jointly develop", building Northeast Asia regional cooperation frame of mechanism to maintain and move forward China and Japan cooperation in sea area in East Sea of China further. Northeast Asian energy cooperation will offer the realistic and possible route for setting-up of this frame. |