Objective To explore the effect of WeChat platform based peer education on recovery of patients receiving cruciate ligament reconstruction. MethodsOne hundred and five patients receiving cruciate ligament reconstruction were assigned into a control group of 48 and an observation group of 57 chronologically, receiving either routine health education or WeChat platform based peer education. Rehabilitation selfefficacy and compliance, as well as function of the knee joint were compared between the two groups at admission and at postoperative 1 and 3 months. Results The observation group had higher rehabilitation selfefficacy, compliance and function of the knee joint compared with the control group at postoperative 1 and 3 months (P<0.05, P<0.01). Conclusion WeChat platform based peer education can enhance rehabilitation selfefficacy and compliance of patients, thus to promote recovery of knee joint function.