Teachers and principals must be competent at writing scientific articles. The ability to write scientific articles affects professional and career development. The community service activity aims to improve the ability of teachers and principals in writing classroom and school action research articles. The training participants were the teachers and principals. Training activities were conducted online. The training material focused on determining the topic, writing the introduction, methods, results, discussion, and conclusions. The results of community services through training in writing action research articles showed that aspects of material, facilities, methods, facilitators, and administrative services received appreciation from participants with a very good level of satisfaction. Participants experienced an increase in knowledge, with a pre-test score of 74 and a post-test score of 80.
