This study aims to describe the increase in integrated thematic learning outcomes of students using the Mind Mapping model in class V SD Negeri 08 Salimpaung. The research method used is Classroom Action Research (CAR) with qualitative and quantitative approaches. The research was conducted in two cycles: Cycle 1 held 2 meetings and Cycle 2 held 1 meeting. Each cycle includes four stages: planning, implementing, observing, and reflecting. The research subjects were teachers and 11 students. The results of the study as a whole show: (1) the average observation of the Learning Implementation Plan in Cycle I was 81.95% and in Cycle II was 94.45% (SB); (2) the average learning implementation of Cycle I was 88.64%, and Cycle II was 97.73%; (3) the average implementation of learning by teachers and students in Cycle I was 85.23% and in Cycle II was 95.46%, and (4) the learning outcomes of Cycle I meeting I was 63.85%, meeting II was 74 .32%, and in Cycle II it increased to 81.47%. Thus, it was found that the use of the Mind Mapping learning model was very appropriate and at the same time could improve the integrated thematic learning outcomes of elementary school students.