This study is focused on the process of community resource building for the protective and corrective agencies. Because of lack of skills and funds at these agencies, it becomes known that various resources should be mobilized from the community to enhance the capacity of those correctional institutions. The mobilization of community resource is much required not only for the high quality of programs but also for the development of the participants. In the study, social exchange theory and some concepts including voluntary are mentioned to rationalize the process of community resource building. Also three cases are introduced as the community resource building in the field of corrections. A model of community resource building for the protective and corrective agencies is developed based on the theory and those concepts. Community resource building could be processed through the following levels; assessment, recruitment, training, application, and evaluation. Specially, community resource building should be emphasized to reward the participants for their efforts. Furthermore, community resource building is an important independent program from the main program which is to be conducted at the correctional centers. The model of community resource building developed in this study needs to be applied at the correctional institutions to make up for the weak points.