This study is to build basic materials of Korean speech act education by analyzing similarity and difference through comparing Korean native speakers(KNS) with Chinese native speakers(CNS) about realization phases and strategy types of responded speech act against ‘courteous request’ of Chinese Korean learners(CKL), and reviewing an interlanguage phase of the learners. The ‘courteous request’, which is special request having different characteristics from general request, exists in Korean society, but this study was chosen because there is no research related with it. An experiment for viewing phases of response realization of the Korean learners was carried out, and it was tried to give realistic help to the learners through compared and analyzed results. Chinese Korean learners in the response realization phase about the ‘courteous request’ showed the interlanguage phase, and a detailed teaching method of speech act should be prepared for them. (Keimyung University)