The main objective of this study is to explore an important method of punitive treatment within correctional institutions (prisons) through which the disciplining, rehabilitation and reform of the convicts can be achieved. The punitive action ceased to bepainful, and it no longer has anything to do with determining the type of freedom-depriving punishment. Using the descriptive analytical approach, the study explored the purposes of punitive work as one of the modern punitive treatment methods whose purpose is to discipline, rehabilitate and reform. The study took into account that punitive work has a key role in rehabilitating the convict, as it either helps him to master the profession he used to practice before entering prison, or it pushes him to learna new profession consistent with his inclinations and desires. In addition, giving the inmate a remuneration makes him discover the value of himself as a human being and his role in satisfying his needs. This work is organized and regulated, not contracts of employment or contracting contracts concluded between the penal administration and the convicts, and the results of data analysis showed that punitive work within the correctional and penal institutions today is one of the most important methods of other modern punitive treatment, which all together lead to an effective contribution to the rehabilitation and reform of the convicts The study found that there are several goals that can be achieved through the punitive work method within the correctionalinstitution, including the rehabilitation purpose of the convicts, in addition to the other purposes of maintaining order within the penal institution, in addition to the economic purpose whose impact is reflected not only on the convict, but also to the whole community. Thus, the study concluded that punitive work is a right of the convict that requires him to take advantage such as obtaining the appropriate wage for him, obtaining rest, determining the maximum working hours and the obligation to compensate those who are injured because of it from those convicted in work accidents and occupational diseases, and that the convictalso has the right to choose work that matches his inclinations and his desires and abilities, and also concluded that punitive work in penal institutions develops talents and abilities, generates self-confidence, self-esteem and responsibility, brings satisfaction and instilsa love of work and familiarity with it.