Analysis on Competition and Complementarity of Sino-India Trade

China and India,as the world's two largest developing countries,because of the adjacency of the geographical position,the similarity of the national conditions,this results in a similarity in the foreign trade of the two countries.This paper revealed trade integration index,comparative advantage index,trade complementarity index to analyze the competitive and complementary situation existing in Sino-India trade,which have a major significance for instructing the two countries to make correct trade policy and promote bilateral trade.