The topic of work is the disorder of the fluency speaking of children of preschool age. It is accompanied by frequent repetitions, extensions, tensions and stoppages. Cramps and improper breathing appear during speech. Stuttering is accompanied by physical symptoms that appear in stressful communication with the child. Stuttering is widespread in the world, and it originates from ancient times. First, it occurs between the second and third years of life, when speech develops intensively, but it may occur later. The cause of stuttering is explained by three theories: constitutional, developmental and environmental. The speech-language development of children is increasingly influenced by the media, which have become an important part of everyday life. There are more division of stuttering. The first division is on physiological, primary, secondary and acute / abrupt stuttering, while the other is psychogenic and neurogenic, which appear later in life. There are five stages of stuttering development, of which three stages appear during preschool age (developmental speech failure, border stinging, initial stuttering), stage during school age (transient stuttering) and stage during adolescence and further (advanced stuttering). Speech therapy is performed with the child - indirect and direct, before which diagnostic procedures are required. The child has fear of speaking and situations that require speaking, which affect his psychological state and selfconfidence. It is therefore important to provide support and encourage it in progress. A research was carried out to find out how often preschool teachers have interactions with a child who has a speech disorder and in cooperation with a therapist carries out speech excerises, how often do they cooperate with the child's parents and in which way those children included in working with other children. The results show that most preschool teachers do not consider themselves competent to work with children with a speech disorder, but they have cooperated with parents in every possible way. These children were daily involved in the work of the group that contributes to their further growth and development.