By modularizing spaces, passageways, and cells into various types, no matter what kind of building form the prison takes, allows for more possibilities and flexibility in terms of different site needs. In terms of flow planning, relatives are allowed to go deep into the center of the prison during reachable reception, visitors are also allowed to visit the exhibition of modular cells in the more external areas. By dividing the prison into three zones for correction in stages, the flow and vision of each zone will cause strong psychological feelings to the prisoners in different periods.