This study is to find the avenue to the successful defoliant victim aid project for patients who suffer long-term effects of exposure to Agent Orange,akind of defoliant,in theVietnam Waror the Southern Limit Line at the Demilitarized Zone in the late 1960s.In this regard,an analysis was made of budget execution,defects to be compensated and countermeasures,and a review was made ofdefoliantvictim aid system from overallperspective.In addition,the performance analysis framework was setup,and interviews were had with hands-on staff. An investigation was made into the appropriateness and effectiveness ofpatientexamination system,epidemiologicalsurvey,specialaid system and victim aid project,where through defectsand countermeasures were reasoned out.The project aims at giving aid not only to defoliant victims butto their children,given the factthatthe damage affects even them.Itis very significant in that the project is held responsible certainly for persons who sacrificed themselves for their country.Moreover,its performance was judged to be sufficient.Considering national veterans welfare services inferior to advanced countries,this project is deemed to be remarkably significant in the social dimension.