The study aims to describe the feasibility and effectiveness of civics learning media based on pictorial stories to improve students' critical thinking skills in Theme 8 Sub-theme 3 about the socio-cultural diversity of the society.  This type of research is research and development.  While the research design used is the research of Borg & Gall.  The research subjects were made 1 teacher of class V and 25 students of class V, as well as 2 material experts and two media experts.  Data was collected through questionnaires, tests, and interviews.  Based on the results of material expert validation, an average score of 89.7% was obtained, while media experts obtained an average score of 87.9%, which was categorized as very feasible. Meanwhile, based on the results of the student response questionnaire, the average score obtained was 87.9%, which means the category is very good.  In assessing students' abilities, the researchers conducted pre-test and post-test.  From the results of the pre-test and post-test, it can be seen that there is an increase in students' critical thinking skills, namely the average score of 55% during the pre-test to 72.6% during the post-test.  Based on the n-gain score assessment criteria, the effectiveness of picture story-based learning media obtained a value of 0.39, which means that it is in the range of 0.3 < g < 0.7 classified in the medium category.