My thesis explores the role of a puppet in social interactions among kindergarten children. I studied the effect of puppet activities and social plays on the social and emotional development of individuals and on group relationships. The theoretical part consists of four chapters. It describes the social and emotional development of preschool children, the educational role of a puppet and presents the sociometric technique used in researcing the group's structure.In the practical part the project Let's help the dwarf Berin is presented. It was carried out in Zala Kindergarten Gorenja vas, Unit Dobrava, in the group of children 5 to 6 years old. There are three chapters, namely project work with a puppet – the dwarf Berin, social plays and a sociograph.