Children’s sociality is a key link in the comprehensive development of children, and has been concerned by many scholars in the field of education. Through the distribution of questionnaires to collect data, and with the help of SPSS26.0 to analyze the data, from different dimensions to understand the current situation of children’s social development in urban areas, the survey results show that: (1) There are certain differences in the development level of children’s sociality in each dimension. Among them, the average score of the dimension of living habits was 12.5, which was the lowest development level among the 15 dimensions. The average scores of honesty and justice, empathy and helping others were 16.39 and 16.26, respectively, the highest level of development among the 15 dimensions. (2) There were significant differences in the overall level of social development of children of different genders (p<0.05), and the social development level of female children was higher than that of male children. (3) There was no significant difference in the social development of children of different ages (p>0.05), but there were significant differences in the five dimensions of introversion, self-concept, independence, competitiveness and self-esteem (p<0.05). (4) The overall level of social development of urban hukou children and rural hukou children was similar, and there were only significant differences in the three dimensions of empathy and helping, competitiveness and self-esteem (p<0.05). (5) There was a significant difference in the overall level of social development between the only child and the non-only child (p<0.05), and the difference in the dimensions of empathy and helping reached an extremely significant level (p<0.01), and the difference in the four dimensions of compliance with social rules, introversion, self-concept and competitiveness reached a significant level (p<0.05). In this regard, through field observation and literature to analyze the factors affecting the social development of children, effective strategies to promote the social development of children in urban areas are proposed from the aspects of parents, kindergartens and society.