This research is based on the importance of developing Islamic Montessori model for religious education learning in Montessori Preschool. The aim of this research is to analyze Islamic religious Education in Montessori Preschool. This article is a preliminary research and development study that orchestrates ADDIE model which consists of analysis, design, development, implementation, and evaluation. For this preliminary research and development stage, this research focuses on need and context analysis, literature review, and conceptual theory development. The result of need and context analysis showed that most teachers tend to use conventional model in the learning process. Thus, students have never been involved in Islamic religious education learning activity using the Islamic Montessori model. To strengthen the research findings, the researchers decided to conduct a field research at the Kalyca Azzahra Montessori Preschool. The field research suggested that Islamic religious education is oriented towards the end result without being accompanied by a clear lesson plan process. Moreover, the teachers were not provided with a guidance book according to Islamic Montessori model.