The invention provides a medical-inspection microorganism incubator. The medical-inspection microorganism incubator includes an upper incubator body and a lower incubator body; the upper incubator body and the lower incubator body both includes incubation cavities, lower groove fixing plates and circular rails, the lower groove fixing plates are arranged at the bottoms of the incubation cavities, the circular rails are arranged at the tops of the incubation cavities, air-permeable illumination parts rotating along the circular rails are arranged on the circular rails, and the tops of the air-permeable illumination parts are provided with fixed bulge top covers; the side end face of the upper incubator body and the side end face of the lower incubator body are both provided with liquid inlet parts and liquid outlet parts, the liquid inlet parts and the liquid outlet parts all include sealing rubber parts and outer sealing covers, the sealing rubber parts are communicated with the interiors of the incubation cavities, the outer sealing covers are arranged on the exteriors of the sealing rubber parts in a sleeving mode, inner threads are arranged on the outer sealing covers, and outer threads are arranged on the sealing rubber parts.