A medical cabin system comprises a safety protection structure, an identification structure, an environment simulation structure, a radiotherapy isolation structure, and one or more other independent walls. The safety protection structure is disposed on an entrance of the medical cabin system. The identification structure is disposed on a medical equipment of the medical cabin system or in an enclosed space defined by a stereo location region of the medical cabin system. The environment simulation structure is disposed on a top portion and at least one side wall of the medical cabin system. The radiotherapy isolation structure isolates the stereo location region from a radiotherapy region of the medical cabin system. The independent walls define at least one enclosed space with the radiotherapy isolation structure.