Childhood, as the first and most significant period of a person's life, is the founder of children's abilities and creativity (between 2 and 10 years of age). During these years, the child is highly affected by the environment and shows a high level of curiosity about the surrounding environment. Due to the presence of a majority of children aged 2 to 6 years in kindergartens and the need to pay serious attention to their open spaces for the education and development of children's creativity, this article explains the factors affecting the growth of children's creativity in the open spaces of kindergartens. In this regard, some of the effective factors in the development of children's creativity that should be considered in the design of the open spaces of these buildings are provided using the descriptive survey research method. The statistical population of the study included educators and kindergarten staff. Structural equations were used in SPSS and AMOS software to analyze the data. According to the results of the study, it can be stated that the development of children's creativity will not be possible only through educational programs but also through flexible spaces, using natural elements, and children's participation, which will children's creativity. In this regard, the component of children's participation is the most effective in the growth and development of children's creativity. After that, space flexibility, natural elements, space playability, color and light, kind, sense of security, and space legibility, respectively, have the highest effect on the development of children's creativity.