This study examined the relationship between frequent speech acts in a discourse and the type of discourse related to these speech acts. A discourse or a text is the sequence in which speech acts are structured systematically, so speech acts are regarded as basic unit of a text or a discourse. Therefore, to demonstrate its function and nature of discourse, the investigation on the function of individual speech act constructing a discourse has to be preceeded. This study collected a variety of discourse samples, categorized them according to several types, and then investigated the function of speech act respectively. However, the results do not show a distinct relationship between discourse types and the function of each speech act. (Yonsei University/Kyung Hee University)