This research aims to determine the urgency of collaboration between school personnel in implementing guidance and counseling services at schools. The successful implementation of guidance and counseling services in schools cannot be separated from the cooperation of all school personnel. The success of counseling can support the achievement of educational goals for students at school. This research method is a literature study. Data collection is carried out through a number of library data, recording and managing research materials. Based on the results of the research conducted, it shows that the collaboration carried out by the school principal, homeroom teacher and class teacher in implementing guidance and counseling services at schoo...