This study used action research method and the aim was to integrate adventure education to develop a set of instructional courses for fourth-grade students’ class managing, to discuss the implementation process and to observe the changes in the situation after the courses for the class cohesion. The implementations duration encompasses 10 weeks, a total of 17 adventure education classes. Through a series of activities which covered a range of experiences: warmup, communication, trust, and problem solving, these students were sharing feelings, following rules, getting along well, and working as a team. As the results, the adventure education courses could increase the class group cohesion for primary school students.