Children represent the future of the country and the future of mankind. Only by meeting the needs of children's excellent development can human society develop at a high speed. Children's intelligence begins to develop gradually during the preschool stage, and their personality gradually forms. According to relevant research, 3 years old, 4 years old, 3 to 5 years old, and 3 to 6 years old are the best times to recognize words, form digital concepts, develop musical inspiration, and cultivate imagination. Children are in an important period of perception, attention training, emotional expression, memory, and thinking development. Children's wishes and psychology are likely to be extremely mismatched in this special stage, but educational toys can make them greatly satisfied. The following are various design expressions of educational toys.