The purpose of this study is to analyze the present situation and problems of Korean Veterans' Policy on 6.25 veterans and to suggest ways to improve them. Furthermore, when the North Korean army is rapidly advancing at the time of the Korean War, we will quickly explore the Korean peninsula issue based on the UN security system and look for the direction of the veterans project and the diplomacy of the patriots for the 16 countries. As of 2017, the Korean War veterans were aged at an average of 87, and their lives are suffering from deteriorating economic life. 6.25 Veterans' services and treatment improvement should be urgently implemented in accordance with the characteristics of the veterans of war. First, as veterans become aging, we should give them the utmost courtesy. Second, it is very important to strengthen access to these services to suit each trait such as realization of veterans' benefits, establishment of medical support system, funeral service etc. Third, in order for veteran diplomacy to develop to a higher level, it is necessary to establish a system of interest and support for the ministerial level because the Ministry of Veterans Affairs is limited. In other words, there should be an institutional mechanism for priority consideration of the United Nations participating countries. Finally, the discovery of the 6.25 veterans which commenced in 2014 should be promoted promptly, and the completion of the identification of 420,000 unregistered citizens should be supported and honored as national merit.