Each school would have a rule each including at SMK Muhammadiyah 3 Banjarmasin, Regulations made is expected to be obeyed by all citizens sekolah. Realities in SMK Muhammadiyah 3 Banjarmasin, not all students abide by the rules. This study aimed to reveal the students obedience, internal factors and external obedience underlying class X students in implementing school rules at SMK Muhammadiyah 3 Banjarmasin. The method in this study used a qualitative research approach. The research site is at SMK Muhammadiyah 3 Banjarmasin. Source of data used primary and secondary data, informants selected by purposive sampling. Instrument is the researcher's own reaserch using interview guides, booklets, camera as a documentation tool. Data was collected through observation, interviews, and documentation. Technical analysis of the data using an interactive model of analysis steps are data reduction, data presentation, drawing conclusions and verification. To test the validity of the data, use of data and triangulation credibility test. These results indicate that adherence to class X students in implementing school rules at SMK Muhammadiyah 3 Banjarmasin has been implemented, altaough there is a small portion of students who break ther rules like not wearing a uniform by the ryles do not wear a full attribute flag during the ceremony; and so forth. Internal factors that lie behind them is the health of students, following the inability of the child in the learning and high intellectual ability has also contribute in the implementation of school rules. While external factor are the family atmosphere the students themselves, the way parents instill discipline, parental guidance, state supported schools and neighborhood students. Advice from the reaserch result, the party of SMK Muhammadiyah 3 Banjarmasin and teachers to more effectively implemented school rules should be stricer sactions and coaching for students who is disobedience. For students, should furher abide by the school rules so that learning activitas as expected. Keywords: Obedience Students, School Rules