The research aims to 1) Develop a high-quality Line bot, Chang noi Muangkued, to support the learning of social studies, religion, and culture for upper primary school students, 2) Compare students' learning achievement before and after using the innovation, and 3) Evaluate student satisfaction. The research sample consists of 30 students from grades 4 to 6 at Baan MuangKued school. Research tools include : 1) Line bot Chang noi Muangkued. 2) Quality assessment form. 3) Questionnaire, and 4) Satisfaction assessment form. Statistics used for analyzing data were mean, standard deviation, and t-test. The research findings are as follows : 1) The Line bot Chang noi Muangkued significantly enhances teaching and learning at Baan MuangKued school, highest quality in every aspect. 2) The comparison of students' learning achievement before and after using the innovation shows that the mean score after using the innovation was significantly higher than before, with statistical significance at 0.01. And 3) Overall student satisfaction is rated at 4.53 (S.D. = 0.71), signifying high satisfaction. Therefore, the Line bot Chang noi Muangkued is a quality media that helps promote lifelong learning with digital technology on the Line application for students very well. It can also expand the knowledge gained from the project to other learning groups and other target groups in large numbers.