Abstract-The current preschool education children's educational software mostly ignores the preschool children's psychological characteristics and rigidly combines the educational and entertainment nature of the game, which affects the learning effect of preschool children. Based on the psychological characteristics of preschool children, the characteristics of preschool children's demand for computer games were deeply analyzed. In addition, the preschool children's entertainment software was designed and developed. The game was built according to the system elements and design principles of the educational games, and the appropriate kindergarten curriculum content was selected so that preschool children can be substituted and truly entertained. The practice showed that the preschool children's educational software captured the psychological characteristics of preschool children. It is concluded that the software effectively promotes preschool children to obtain knowledge in a relaxed gaming environment and improves the learning effect of preschool children.