Abstract: 【ABSTRACT】Objective: To compare cross rapid rehabilitation after ligament injury combined training collateral ligament injury treatment and rehabilitation of the conservative rehabilitation.Methods:80 patients with multiple knee ligament injury,48 cases of car accident injuries,sports injuries 32 cases before the cruciate ligament with ligament damage,damage two ligaments; surgical approach for the former Arthroscopic ligament reconstruction and post collateral ligament repair postoperative rehabilitation were randomly divided into fast rehabilitation group (40 cases) and conservative training group (n=40),respectively,with a conservative rehabilitation and rapid method for postoperative recovery.Results:Quick training group Training groups and conservative physical stability of the knee were negative.The postoperative treatment and after care,rehabilitation group good rate of six months was 92.5%,excellent rate of 67.5% in the control group,the rehabilitation group was significantly superior than the control group,a significant difference between two groups(P＜0.05).Conclusion:The rapid rehabilitation training group compared with the conservative group,the pain,can significantly improve knee function in patients,the recovery time is short,independent living skills,increase the confidence of patients and improve the quality of life of patients and improve clinical excellent rate,it is worth application.