The recovery time for knee ligament rupture needs to be judged according to the specific condition. Partial rupture usually heals within 4 to 6 weeks after conservative treatment; if the condition is more serious, it may take 3 to 6 months to recover. 1. Partial rupture of ligaments: conservative treatment such as cast immobilization and braking is usually adopted, and the recovery time is relatively short, and the functional recovery training can be started gradually in 4 to 6 weeks. If the ligament is injured in a special area, such as the anterior cruciate ligament, the recovery time may be prolonged due to its special characteristics. 2. Complete ligament rupture: Depending on the ligament, surgery is needed to close or rebuild the ligament, which may also cause damage to the surrounding tissues, and the healing time is longer, usually 3 months to start functional exercises, and it may take half a year or even longer to restore joint function. A ruptured knee ligament requires prompt hospitalization and active functional exercises under the guidance of a doctor in order to recover as soon as possible.