The invention discloses a mobile nursing device for an operating room. The nursing device comprises a nursing support, wherein a pillar is arranged at the upper part of the nursing support, a supporting seat is arranged at the upper part of the nursing support, a water tank, a storage box, a disinfection cabinet, a cleaning part and a fixing seat are arranged at the upper part of the supporting seat, one side of the fixing seat is connected with a water inlet pipe, one end of the water inlet pipe is connected with the water tank, a balancing weight seat is arranged at the upper part of the water tank, the storage box is arranged on the front side of the water tank, an operation instrument storage rack is arranged above the storage box, the disinfection cabinet is arranged on the rear side of the water tank, the cleaning part is arranged on one side of the disinfection cabinet, and a washing part is arranged on the front side of the cleaning part. The mobile nursing device is simple and fast to use, reasonable in layout, favorable to an operation by medical workers, safe, efficient and convenient to move, integrates disinfection, cleaning and storage, has complete functions and is beneficial to popularization, the working efficiency of the medical workers is improved, and the work intensity of the medical workers is reduced.