Surgery is not mandatory for right knee collateral ligament rupture, and the doctor should decide whether surgery is needed according to the specific situation. If the condition of right knee collateral ligament rupture is less serious, conservative treatment can be chosen, through the support or plaster fixation for 4~6 weeks, after removing the plaster or support, carry on the rehabilitation exercise, and gradually restore the function of the knee joint, and most of the patients are able to get a good healing. If the situation is serious or the location of the rupture is not suitable for conservative treatment, surgery can be chosen to reconstruct or repair the ligament. Rehabilitation exercises will be carried out in the later stage to restore the function of the knee joint, and attention should be paid to minimize the complications and sequelae caused by the trauma. The right knee collateral ligament rupture should be timely to the hospital for examination, according to the specific circumstances, under the advice of the doctor to choose the treatment, must not be blindly dealt with on their own, delaying the condition.