The purpose of this final paper is to create a true picture of the use of a yawning doll in working with preschool children. The doll it self is a medium and is known as a popular tool in all forms of work with children. The doll is a figure that reminds us all of our childhood and the games we used to play as a kid. There is an emotional connection between each child and the doll and many memories are often associated with it. The yawning doll it self is expressed through speech, imitation. In a yawning doll, the body is the least important, while the most important part is the large accentuated mouth and its head. There is great pedagogical value in playing with a yawning doll and also playing with a doll is a symbolic game. This kind of puppet play is the basic activity of every child and it is a way to develop children's abilities, emotions and positive self-image. Many children very often simply can not express them selves in words and symbolic puppet play can be one solution to such a problem. It is a tool that makes it easier for children to communicate with peers, educators, parents and other adults, encourages them to be in dependent and to meet their needs. This paper seeks to show the wide range of effects of a yawning doll in working with children and its importance in emotional and social development.