There have been following important trends in the international trading relations since the post-war period, the increase in the high value added products of trade, the rise in the share of developing countries in the total world trade and the changes in the pattern of trade. The patterns of trade are considered have been changed from vertical to horizontal and also from inter-country to intra-industry, and intra-firm. It is for this reason, the purpose of this paper is to clarify the relations of international specialization of food industry in Asia. It will be analyzed from four sides. Firstly, the pattern of food trade in Asia will be indicated in this paper through the analyze of international input-output table. Secondly, the characteristics of Japanese food industry and its tendency of enlargement to develop abroad will be clarified. Thirdly, we will also analyze the relations of specialization among different types of development abroad of Japanese firms. Finally, the main composition of international specialization in food industry will be analyzed. The importance of distribution industry in international specialization will be indicated.