The“three full - education”is an important theory,put forward by the Party and the state in the new era,for the fun- damental task of moral education in colleges and universities,which integrates the programs,carriers and resources of college education and reconstructs the patterns,systems and standards. As the most significant participant and implementer of the ideological and politi- cal education,university counselors should play their explicit role and exemplary leadership in the“three full - education”,which is the prerequisite and foundation for ideological and political education. Under this perspective,counselors ought to accurately position their roles and deeply understand the significance and scientific connotation of“three full - education”,which means to grasp the law of ideological and political work and students’growth. They ought to play a linking role in the all - member education and a leading part in the whole - process education. Also,they need to enhance service consciousness in the all - round education in order to elevate the effectiveness of work and promote the professionalization of university counselors.