This study aims to describe the Internalization of Islamic Religious Education about the Religious Humanist character of Students. This research uses phenomenological qualitative methods using interviews, observation and documentation. This data is analyzed in detail by presenting meaning, phenomena, and problem-solving. Internalization, the results of this study, indicate that internalizing Islamic Religious Education in building Students' Religious Humanist character is caused by several backgrounds, namely, the lack of implementation of theory in the teaching and learning process towards community life, the resulting output is not as expected, and the lack of implications of Islamic Religious Education in humanist and religious aspects. In addition, Islamic religious education is also internalized in the form of methods and evaluations. Second, approaching students includes exemplary, giving attention, social and spiritual practices, habituation, control, supervision, reward and punishment.