The invention mainly discloses a full-automatic orthopedic bone drilling, water injection and water pumping integrated device. According to the technical scheme, the device comprises a bone drilling body, the front end of the bone drilling body is provided with a drill bit part, a drill bit of the drill bit part comprises a water injection section and a cooling section, the axis center of the water injection section is provided with a water injection pipeline, and a water inlet and a water outlet which are communicated with the water injection pipeline are formed in the two ends of the surfaceof the water injection section respectively. The front end of the bone drilling body is further provided with a sleeve sleeving the drill bit part, a cooling pipe helically surrounding the cooling section is arranged in the sleeve, and a water outlet end of the cooling pipe is connected with the water inlet. A medicine storage cavity is formed in the bone drilling body, one end of the medicine storage cavity is connected with a first liquid inlet pipe, the other end of the medicine pipe is provided with a second liquid inlet pipe connected with the cooling pipe, and a third liquid inlet pipeis parallelly connected between the first liquid inlet pipe and the second liquid inlet pipe; the upper portion of the sleeve is provided with the water pumping part. The full-automatic orthopedic bone drilling, water injection and water pumping integrated device has the advantages that the size is small, operation is convenient, the bone drilling operation efficiency and quality are improved, theinfection rate is reduced, and the postoperative healing speed is increased.