Rehabilitation for cruciate ligament rupture reconstruction surgery includes early rehabilitation, medium-term rehabilitation and final rehabilitation. 1. Early rehabilitation: the heel can be padded and the affected limb can be elevated for rest to avoid pressure sores. Perform isometric contraction exercises for quadriceps and hamstring muscles, and elevate the affected limb when resting. Continuous passive activity exercises, the initial range of motion is small, 2 times a day, 1 hour each time. And carry out joint mobility exercises. 2. Medium-term rehabilitation: start balance and coordination exercises, practice standing on the ground, practice walking with the help of crutches or a walker, practice isotonic contraction of quadriceps and hamstring muscles with equipment resistance, practice functional cycling, and practice walking up and down the stairs as appropriate. 3. Terminal rehabilitation: increase squatting exercises to enhance muscle strength, and continue joint mobility exercises, while continuing to improve walking ability, full weight-bearing. Rehabilitation after cruciate ligament rupture reconstruction surgery is recommended under the guidance of a doctor or therapist to avoid delays.