The purpose of this study was to know about the development of practical life exercise, one of the Montessori curricula that researchers conducted at the Pioneer Montessori School Kindergarten. This study used a descriptive method with a qualitative approach. The data analysis step used reduction, presentation and verification data from Miles and Huberman technique. The participants of this study were one principal and 2 teachers who taught in the toddler and nursery class. There were 7 toddlers, 4-5 years old. From this study, it can be concluded that in practical life activities, there are activities that can develop children's science, artistic and cognitive development. The process of practical life exercises was carried out by steps to show, to know, and to remember.