How to rehab a meniscus injury is related to the patient’s condition, the treatment method used and the recovery time. It mainly includes general treatment, joint mobility training, muscle strength training and other treatment methods. 1. General treatment: Acute meniscus injuries are firstly treated with non-surgical treatments, such as ice packs, rest, and supportive therapy, which can help patients reduce pain and swelling, and promote their functional recovery. 2. Medication: non-steroidal anti-inflammatory drugs (NSAIDs) are usually used to help patients reduce pain, such as ibuprofen, aspirin and so on. 3. Surgical treatment. (1) 1 week after surgery: rest is the mainstay, and mild functional exercises can be performed. (2) 2 weeks after surgery: according to the condition, increase the mobility of knee joint, quadriceps resistance training, ankle resistance training, and patients with good recovery can walk with crutches. (3) 3~4 weeks after surgery: the intensity of functional training, quadriceps and ankle resistance training can be increased, so that the patient’s muscle strength and mobility can be restored to the normal level. (4) 2 months after surgery: patients can start full functional exercise, such as cycling, running, swimming, etc., but pay attention to the intensity of exercise to avoid secondary injury. It is recommended that patients should consult the doctor in time and under the guidance of professional doctors, do not blindly take medication and training to avoid adverse consequences.