Background and objectives: The prison and prisoners' issues, as one of the last stopping stations for criminals and delinquents, have always been a concern of the judiciary, law enforcement, and prison managers, and it is important to address the issues of crime reduction from various dimensions. Therefore, the present study aims to investigate the social and cultural factors affecting non-returning to prison among prisoners in southern Khorasan Province with an emphasis on in-prison training. Methodology: The research method is descriptive-survey. A sample of 312 individuals was selected randomly from all prisoners (men and women) who had the experience of returning to jail in South Khorasan prisons. The data were collected by Glock and Stark Religiosity Questionnaire, Philips et al. 's Social Support, and a researcher-made questionnaire that evaluated five dimensions (social participation, mental problems, social supervision and control, social learning, and detention history). Findings and results: The results showed that the return of prisoners to prison was more than average and there was a significant relationship between social support (support of friends and social support in general), social control and supervision, social participation of prisoners and non-return of prisoners to prison. The results also showed that there is no significant relationship between religiosity, social support (the dimension of family and people support) and mental problems.