Bone joint supporting device

An embodiment of the utility model provides a bone joint supporting device, which relates to the technical field of bone joint supporting and comprises a supporting frame, a groove is arranged on the upper portion of the supporting frame, a guide lead screw is fixedly connected in the groove, and a movable frame is mounted on the guide lead screw in a threaded manner. According to the bone joint supporting device, when the knee joint of a patient is operated, the supporting frame is fixed to an operating bed, the heel of the patient is placed on the upper portion of the heel fixing frame, the sole of the patient is placed on the sole supporting plate and fixed through the fixing belt, and medical staff press the sliding rod and the moving block at the same time; the movable frame is pushed to move towards one end, so that the legs of the patient are slowly put up until the legs move to a bending angle needing an operation, the sliding rod is loosened, the limiting insertion column is inserted into the limitin