The recovery time of artificial knee replacement is usually within 6 months, and the specific recovery time needs to be judged according to the operation method, post-treatment, and the patient’s physical condition. Artificial knee replacement can be categorized into single knee replacement and total knee replacement. The recovery time after single knee replacement is shorter, usually 1~2 months to return to normal, while the recovery time after total knee replacement is longer, usually 3~6 months to fully recover. After artificial knee replacement surgery, exercise should be carried out gradually, such as joint mobility training, muscle strength training, balance and stability training, etc., which can help to speed up the postoperative recovery. Patients who do not undergo rehabilitation therapy will have a relatively longer recovery time after surgery. In addition, younger patients without underlying disease usually recover faster than older patients with underlying disease, but full recovery usually does not exceed 6 months.