Since establishing the 2003 FTA roadmap, Korea has concluded fifteen FTA negotiations with 52 countries. Negotiations have become more complicated than in the past as multilateral FTA negotiations (Mega-FTA) have recently become more prominent. Therefore, the results of FTA negotiations that have already been concluded are becoming more important in future FTA negotiations. The purpose of this study is to analyze the openness of tariffs by agricultural products. As a result, the openness of tariffs on vegetables, short-term income forest products and special crops is low, but the openness of tariffs of meat and some dairy products is high. In addition, it is analyzed that the RCEP negotiation is more affected by the tariff reduction than the TPP negotiation. In particular, since China is involved in the RCEP negotiation, it is necessary to focus more on tariff negotiation. TPP negotiations need to focus on negotiating services and norms.