This paper discussed the issues of the historical studies on the quotative construction in Middle Korean and Modern Korean and suggested some research tasks. In this paper, three issues were discussed: the types and the change process of the quotative constructions in Middle Korean and Modern Korean (chapter 2), the characteristics of quotative verbs (chapter 3) and the characteristics of quotative markers (chapter 4). We also suggested some research tasks of the quotative constructions focused on the future: the explanatory definition on the concept of quotative construction applied to the historical studies and the contemporary studies, the strict understanding of characteristics of quotative verb hʌ-, the further discussion on the relationship of fusional endings and the quotative constructions.