Social emotional development needs to be developed from an early age because it has a big impact on children's behavior until adulthood. This refers to an individual's ability to understand, manage and express emotions and have independence in life. This research aims to analyze the results of the integration of the Montessori learning method with Islamic activities for children's social emotional development. To fulfill the needs of this research, researchers used qualitative methods with the type of case study or phenomenology. There are three sources of data which are used as research analysis data, observation, interviews and document analysis. Observation data was taken from nineteen children as participants, while interviews were conducted with two teachers, and supported by analysis of the learning outcomes of all children who were the objects of research. Observation data, interviews and documents were analyzed using the Miles and Huberman technique. Overall, the research found two aspects that occurred to children after going through the learning process. There are four findings in the religious aspect, namely (being able to prepare oneself before worshiping, being orderly when worshiping, being patient through a series of worship services and enjoying reading the Koran). Furthermore, there are two findings on the emotional aspect (cooperation, independence and environmental care and mutual respect). These findings can be used as initial data for future researchers to study this issue more deeply. Apart from that, it serves as a reference guide in developing research related to the social emotional development of early childhood.