The development of quality education in the teaching and learning process must be able to choose and apply various approaches and methods to improve student learning achievement. The quality of learning achievement of students in Islamic Education (PAI) subjects with scores below the KKM (Not Complete) reaches 70%. Even though the minimum completeness criteria (KKM) of PAI subjects in class VIII 2 of Kuantan Hilir 1 Junior High School are 77. Therefore, this study was tried to deal with the problem of low student learning outcomes. One method that can be applied is the Peer Group Teaching method. The Peer Group Teaching method provides an opportunity for students who have completed learning to provide assistance to their peers, so they will not be awkward to ask if something is unclear. The purpose of this study were: (1) to determine the application of the Peer Group Teaching method in PAI Subjects in Class VIII 2 of Kuantan Hilir 1 Junior High School, (2) to find out the application of the Peer Group Teaching method to improve results student learning in PAI learning in class VIII 2 of Kuantan Hilir 1 Junior High School. This study uses a Classroom Action Research (CAR) design of 3 cycles, namely pre-cycle, Cycle I and Cycle II. Each cycle consists of one meeting and four stages, namely: (1) action planning stage; (2) the stage of implementation of the action; (3) observation stage; (4) Analysis and reflection stages. The target of this study was class VIII 2 of Kuantan Hilir 1 Junior High School. Meanwhile, the data obtained in the form of the results of competency test and observation of group learning activities. From the results of research data analysis, PAI learning with the use of the Peer Group Teaching method (peer tutoring) can improve student learning outcomes. This is evident from 30 students, 26 students (87%) have reached the specified KKM, 77, although there are 4 (13%) students who have not achieved individual completeness. But this has exceeded the set of success indicators as many as 80% of students reach KKM (Completed). However, it seems that further efforts are still needed in empowering student learning outcomes in the school. The teacher is expected to deliver material not only with oral and monotonous information but also by using various learning methods. In addition, it is expected that this learning model can be used as one of the PAI learning alternatives because with this method students become more active in thinking and doing during teaching and learning activities.Keywords: Peer Group Teaching Method; Learning Outcomes; Islamic Education