Childhood obesity increases the risk of obesity in adulthood and is associated with cardiovascular disease risk factors. The prevalence of overweight and obesity is increasing in China. It is necessary to develop an intervention project for preschool children. Based on a service design project aiming at the communication of balanced diet information to the preschool children in China, this paper discusses how to take advantage of the digital platform and game-based learning to empower the preschool children. It argues for the importance of the DIKW hierarchy for empowerment. It also proposes an innovative model to involve new stakeholders into the whole system and to improve the viability of the project.