This article introduces research trends in the field of ancient Korean history from 2019 to 2020 and pointed out three notable trends. The first is the interest in literature and textual materials themselves. The literary texts are analyzed to examine their formation and transcription, and historians try to find accurate reading and interpretation of epigraphs and excavated text materials. The second is the revitalization of research on capitals of ancient countries. This is related to an increase in excavation of ancient cities, including Gyeongju, and the emergence of new generation of researchers. The third is the intensive discussion of Gaya history and Silla’s unification of the three kingdoms. Many surveys and studies have been conducted in conjunction with national policies in the fields of Gaya history, and the discussion of Silla’s unification of the three kingdoms was triggered by the planning of the academic journal Critical Review of History. Considerable discussions have arisen on how to see the unification (war) of the three kingdoms and the political and social changes before and after unification. Recently, the proportion of literature history is decreasing and that of fields dealing with material materials such as archaeology and art history is increasing. This is an irresistible tendency due to the limitation of literature materials and the increase of archaeological data, but literary history is still important and will need to play a leading role in interdisciplinary researches.