To effectively achieve parent-child interaction, a game APP based on user interaction experience has been designed and researched. The interactive behaviors of target children and parents when using the APP were summarized and converted into user needs through interviews and observations. The KANO model was adopted to analyze the needs of qualitatively classified users, deriving the key needs and their importance rankings in the parent-child interaction experience for corresponding design implementation. Testing results indicate that the game APP designed in this paper has a relatively low error rate, with a game completion rate exceeding 95%. It offers a high level of user interaction enjoyment. Compared to four benchmark APPs, this game exhibits significantly higher frequencies (in terms of both count and duration) of parent-child interaction, along with a higher level of enjoyment in such interactions.