This study attempt to investigate the gregarious environment in Bdoosh Jail. The study shows how this environment plays a role in rehabilitating the prisoners. The department of rehabilitation of adults in Bdoosh as a society for the present paper.The paper includes three sections, the first one handles the methodology of the paper including determining the problem and aims of the paper as well as the devices used in collecting data such as interviews and observation, time, place. and human fields of the paper as well as the most important concepts of the paper have also been determined.Section two defines the reform firms and physical environment of that firm as well as social relations among prisoners...Finally, sections three summarizes some conclusions and recommendations based on the results achieved.