The aim of this thesis is to present ways in which a puppet can affect subjects and objects of the educational process in the kindergarten. A puppet is a toy intended for children's play. Through the play children are reliving their experiences. By reviving a puppet, children are reviving their memories, imagination, creativity and many other skills and abilities. As the children's psychic maturity develops, they are capable to relive experiences which they have not directly experienced. A puppet has potential to become a living being with whom a child can become a friend – it is a medium through which the inner world of the child is shown on the outside; emotions and desires are released, artistic expressions emphasized, skills and abilities developed. A puppet as a child's friend helps to overcome obstacles; together they can have fun and laugh or share their sadness and concern. Not only is a puppet useful for development of an individual, but it is also useful for a group of children because it affects the group's unity and stability. Also, a puppet is a great tool for preschool teachers because it is easier for them to approach a child or a group of children. By observing children's play, the educator has an insight into the children's world - in their desires, needs, interests, knowledge, experiences and emotional states. A puppet creates a chance for a natural and spontaneous atmosphere in which children and educators feel free and relaxed. Also, by using puppets, the teacher can be seen in the eyes of the children and thus facilitates self-evaluation and professional progress. The character that was created for the purpose of studying effects of a puppet in the educational process is the character of Pipi Long Stocking. The research that was carried out at the kindergarten Trešnjevka was intended to detect differences in children's reactions to a puppet and the themes of children's play. It is shown that children are quickly identified with the puppet and how easy it is to become their friend. Its good influence on overall child development, problem-solving skills, development of co-operation and community has been confirmed.