The purpose of this study was to develop evaluation scale of operation suitability for flipped-learning course in a University. To achieve this, first, 16 measurement factors were drawn through a review of previous studies. Second, the first version of factors were reviewed by seven experts in education field and then tested a content validity using the Lawshe(1975)’s Content Validity Ratio(CVR) formula. Third, survey data of 981 students who participated in a flipped-learning online and offline classroom of a university were analyzed to test the goodness of fit and reliability of measurement model. Finally, a total of 14 factors were developed. The operation suitability evaluation scale of online learning included 7 factors, appropriateness of online learning time, possibility of review and attractiveness of learning videos, easy access to online learning, autonomy of learning time and place and improvement of online learning. The operation suitability evaluation scale of offline learning included 7 factors, interest in activities, relevance to learning objectives, communication between professors and students, students and students, appropriateness of learning evaluation, connectivity between online and offline learning and improvements in offline learning. The results of this study can be helpful for the online and offline learning effectiveness of the flipped-learning course of the university and be used to improve the flipped-learning course and explore the activation method.