The Soviet three jails located at the Hongtong county ancient Chinese scholartree south the road, the total area 610 square meters, built in the bright Hongwu two years (in 1396), was our country until now the extant most complete only Ming Dynasty county alley jail, in 1959 is listed as the Shanxi Province key Cultural relic preservation organ. The jail has two gates, the double-decked fence, the wall stands tall and erect, in has the water well which, the water trough certain cave dwelling type prison cell as well as the prisoner use and so on. In the ordinary prison cell south tip of west side prison wall halfway, some small temple which carves with the granulated substance, in has 3 idols, comes between is for the prison god nie ceramic. The rear court entrance hangs has the Tiger's-head sign, is imprisons the felon or person condemned to death's prison cell. Soviet three on the pass in this courtyard cave dwelling, thus are called the Soviet three jails. The Soviet three jail's layouts and the punishment system are study the feudal society yamun jail rules and regulations the material information, also studies the play "Mansion Spring", "Female Conveys", "Three Hall Joint hearing" the main material in kind.