The utility model relates to a shower room module of a container. Container comprising a container body, the container body is divided into a shower room and a dressing room through a partition plate.The container body comprises a steel frame system, a top keel, a bottom keel, a top plate, a bottom plate and wallboards, the steel frame system is formed by welding top frames, bottom frames and corner columns, the top keel is connected between the top frames, the top plate is laid on the top frames, the bottom keel is connected between the bottom frames, the bottom plate is laid on the bottom frames, and the wallboards surround the top frames, the bottom frames and the corner columns. The bottom ends of the corner columns exceed the bottom frame, and supporting legs are connected between the bottom ends of the corner columns and the bottom frame and to the midspan portion of the bottom frame beam in a welded mode. According to the container shower room module, the dressing room and theshower room are integrated in one container module, and the partition plate is arranged between the shower room and the dressing room, so that the container shower room module is more reasonable in functional layout and more user-friendly in use. The modules are connected with the ground through supporting legs and bolts, it is guaranteed that toppling or moving does not occur in the using process, and the safety of users is guaranteed.