The invention discloses a liftable bed for surgery. The bed comprises a bed bottom frame, locating pillars are arranged at both sides of the bed bottom frame, suction cups are arranged at the lower ends of the locating pillars, lifting oil cylinders are arranged at all the four corners of the bed bottom frame, connectors are arranged at the upper portions of all the lifting oil cylinders, and arehinged to slide blocks through pin shafts, the slide blocks cooperate with a bed middle frame, a supporting frame is arranged in the middle of the bed middle frame, a connecting platform is arranged at the top of the supporting frame, the two sides of the connecting platform are hinged to a lower bed board and an upper bed board through connecting shafts respectively, one sides of the upper bed board and the lower bed board are both hinged to the bed middle frame through inclined oil cylinders, and a controller is further arranged at one side of the bed middle frame. The height of the liftablebed for the surgery can be flexibly adjusted, and the bed can also be turned over by a certain angle, which makes it convenient for a patient to get into and out of the bed; meanwhile, the inclined angles of the lower bed board and the upper bed board can both be adjusted, the patient can also conveniently adjust the posture as required by the surgery, and proceeding of the surgery is facilitated.