Based on preliminary research, a statement was obtained, that in the research locus the teachers in carrying out their duties were still less disciplined, such as in the case of educational administration, namely making lesson plans and teaching assignments that were still late. This study aims to improve teacher discipline in learning through educational supervision. This supervisory action research is carried out based on the following stages: "(1) planning actions, (2) carrying out actions, (3) carrying out observations, (4) reflecting. The results of research and discussion of disciplinary guidance for teachers in assisted madrasas in carrying out teaching and learning tasks can be concluded that the results of the assessment of the discipline of MI Miftahul Muta'alimin Balad teachers in carrying out teaching and learning tasks are: initial results reached an average of: 52.55, the results of cycle I increase, namely reaching an average of: 69.44, and the results of the second cycle increased to reach an average of: 85.44. Based on the explanation above, it shows that continuous collaborative educational supervision can improve teacher discipline in carrying out their duties.