Abstract: With WeChat becoming the “national no. 1 application” , WeChat social function “circle of friends” has also become one of the most popular network social platforms for college students. College students construct the “ideal self” and “media reality” in the circle of friends, and become the conscious subject and the unconscious audience, which brings new opportunities and challenges to the work of moral education in colleges and universities. To give full play to the initiative of college students’ peer group as the carrier of moral education, to coordinate the two levels of school and college moral education teams, to give play to the leading role of front-line moral education teachers, and to promote the customization of moral education products on the network are the important starting points for moral education workers in universities to carry out moral education in WeChat circle of friends.