The article reveals the problem of developing the ability of preschool children to socialize. It covers the theoretical aspects of the issue and draws attention to the association between the social communication of preschool children and their ability to interact and intercommunicate as well as the development of their social and emotional intelligence, motivation, etc. The article describes methods and methodology for the study of four components of the process of social communication among preschool children such as socio-intellectual, activitypractical, motivational-axiological and emotional. The article considers the following sections of the program which allows forming effective social communications in preschool children: "Socialization. Life skills". There are represented the results of the experimental research of social communications among preschool children in different educational environments (school, kindergarten, developing center of additional education). The dynamics of the development of the capacity of preschool children for social communications and the changes in their social and communicative personal qualities in the process of experimental work are shown. The article deals with the discussion issues of the creation of conditions for the development of effective social communications in children. The author substantiates the necessity of creating a developing educational environment for teaching preschool children, the use of the project method, the interdependent form of play activity in group work with preschool children, analysis and evaluation of this process by teachers and psychologists. It is also noted that developing centers for additional education of children have opportunities for the implementation of this process.