Penelitian ini membahas mengenai pengaruh diplomasi antara Amerika Serikat dan Korea di bidang medis sejak masa Kerajaan Joseon pada tahun 1882 dengan pendekatan diakronis. Sejak disahkan perjanjianShufeldt ditahun 1882, AmerikaSerikatmulaimemberikan perhatian terhadap Korea dan memberikan bantuan salah satunya di bidang medis. Meskipun perjanjian tersebut sempatterhenti pada tahun 1910ketika JepangmulaimenganeksasiSemenanjungKorea, Amerika Serikat kembali membantu Korea bagian selatan termasuk di bidang medis pada Perang Korea 1950. Oleh karena itu, penelitian ini memfokuskan pembahasan penelitian pada peran Amerika Serikat terhadap perkembangan medis di Korea. Adapun penelitian ini ditujukan untuk menjelaskan peran Amerika Serikat terhadap perkembangan Korea Selatan di bidang medis sejak awal terjalin hubungan diplomatik pada tahun 1882 hingga masa pemerintahan Rhee Seungman pasca Perang Korea di tahun 1961. Peneliti menggunakan metode deskriptif – analisis dengan sumber data jurnal dan disertasi. Hasil penelitian menunjukkan bahwa hubungan yang terjalin antara Korea dan Amerika Serikat sangat berpengaruh terhadap perkembangan medis di Korea khususnya Korea Selatan. Adanya campur tangan Amerika Serikat di bidang medis sejak masa Joseon, pada dan pasca Perang Korea menjadi titik awal perkembangan medis modern di Korea Selatan.

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This research discussed the diplomatic relations between United States of America and Korea in medical field since the era of Joseon Kingdom in 1882 with diachronic approach. Since the Shufeldt Treaty was signed in 1882 United States started to focus and supported Korea, medical development was one of their support. Although the treaty was revoked d ue the Japanese annexation in Korean Peninsula in 1910, United States continued to support southern Korea especially in medical aid when the Korean War outbroke in 1950. Therefore, this research focuses on the role of United States in Korea’s medical development. The purpose of this study is to describe the role of United States in South Korea’s medical field development from the diplomatic relation was built in 1882 until post Korean War - Rhee Syngman government in 1961. The researcher used a descriptive-analysis method with journal and dissertation as the data sources. The analysis shows that the relations between Korea and the United States greatly influenced the medical development in Korea, especially South Korea. The intervention of the United States in the medical field since the Joseon period, during and after the Korean War became the starting point for the development of modern medicine in South Korea.