Abstract China and Japan in the East China Sea continental shelf delimitation of disputes in a very prominent, the reasons for the demarcation of the two different standards. The principle of fairness is the general principles of international law; equidistant median line principle is the principle of equity in a special case, is based on \"natural extension\" standard, adopted the principle of fairness submission, or the \"distance\" standard, the \"median line\" approach demarcation The two sides dispute over. In the long term, based on international law, in a pragmatic manner, the objective recognition of the differences through negotiations and consultations before the Court or magistrate, and other channels as soon as possible the demarcation is the ideal way to resolve disputes, is the common prescription of the settlement of disputes Jia excessive arrangements.
Key words: Sino-Japanese relations; East China Sea demarcation; international law; joint development