The purpose of this research is analyzing intellectual development of nuclear families’ 4-5 year old children in rural and urban areas. Precisely, how the child’s living environment influence on intellectual development is examined in this article. According to our research, intellectual development of nuclear families children in urban area who are brought up in preschools have a higher result than nuclear families’ children result in rural area. The study was conducted in the rural and urban areas of Uzbekistan. In terms of research general result, social environment and living condition can impact on the intellectual development of the children.