Prosocial behavior must always be possessed by every student, especially student scout members. The low prosocial behavior possessed by students of the scout members of SMAN 4 Bone, is very influential in establishing interactions in their environment. This research wants to see an increase in prosocial behavior through caring boy scout activities. The design in this study uses The One Group Pre-Post Test Design. The number of participants in this study were 22 students who were members of the scouts of SMAN 4 Bone using purposive sampling technique. Data were collected using a scale of prosocial behavior consisting of 40 items. The statistical test used is Wilcoxon with RStudio software version 1.2.1335. The results of this study indicate that the pretest score was M = 108.6 and the post-test score was M = 120.4. The results of testing the hypothesis obtained values ​​Z (-4.06) and p (.00 < .05), so there is an increase in prosocial behavior through scout care activities. The difference in the pretest and posttest scores shows that the scout care activities are activities that can improve the prosocial behavior of students, especially for students who are members of the Boy Scouts of SMAN 4 Bone.