Purpose : This study was to understand the learning experiences of graduate nursing students through the Problem-based learning curriculum. Method : Six graduate students were included in this study. Of six subjects, four were nurses in the hospital, two were school health nurses in the elementary school. The Problem-based learning curriculum was provided far those subjects in Education Graduate School in A University from March, 2000 to June, 2000. Data were collected through the reflective journal of the subjects. The data were analyzed by the content analysis in the framework of the Grounded Theory method as suggested by Strauss and Corbin(1990) which is useful in discovering and understanding the learning experiences of the subjects. Fourteen concepts were identified from the data. Results : It was found that their experiences were identified through the three stage of learning process. First, during the beginning stage, the subjects experienced adjusting to the group wok as the learning method, uncertainty to the learning process, difficulty of finding problem solving in problem based situation, reflection about one`s role in real field, recognizing a need for self directed study, and recognizing a gap between theory and practice. Then, during the middle stage, they experienced burden for study preparation, conflict for applicability of learned knowledge to the real situation, satisfaction for the learning of knowledge required in real situation, and certainty to knowledge learning by teacher`s lecture. Finally, during the terminal stage, they experienced promotion of self-image in real field, promotion of potential for problem solving, expectation for positive change in real field by one`s role, and change in one`s study and life pattern. Conclusion : This study helps to understand and discover the experiences of graduate students through the Problem-based learning curriculum. Therefore, this study can provide the basic data and direction in developing and applying Problem-based learning curriculum in education.