This study aims to improve the social skills of students in social studies learning through outdoor activity as a learning method. This was a classrooms action research study involving grade VIIA students of SMP Negeri 1 Kaligondang Purbalingga regency. This study focused on improving the social skill. The data of improvement of social skills were collected through observation, interviews, documentation, which is then analyzed for comparison: (1) the result of observations before and after the actions, and (2) the result of observation of social skills of each cycle supported by responses from different parties. Before the actions, the researchers conducted observations of social skills and the mean score was 2.79 (in the moderate category). Through the application of the outdoor activitiy in cycle I obtained mean score of 3.12 (in the moderate category). Through the application of the outdoor activity in cycle II obtained mean score of 3.69 (in the good category). Through the application of outdoor activity in cycle III, the student' social skill improved, with a mean score of 4.16 (in the good category). Based on the result of the observations of students' social skills on precycle, cycle I, cycle II, and cycle III, it can be concluded that the application of the learning method of outdoor activity in Social Studies can improve social skills in students. Thus the method of learning with outdoor activity feasible in learning social studies as one of the learning activities, in particular to improve the students' social skills.