Ecological park is a park that is made to enjoy natural learning and observation about ecosystem preserved by general public. It shows a strong enthusiasm and curiosity about the ecology learning which is generally formed for the users of the ecological park, and it is positive for participation in the commentary program. However, there is an inconvenience that ecological parks rely on guide posters in receiving information due to the nature of the outdoor environment. On the other hand, with the popularization of smartphones, the technology of Augmented Reality has been largely used in many different fields such as education, learning, and experience. Also, there are a lot of ongoing research about how much the technology of Augmented Reality can contribute to one’s interest, excitement, and immersion when it’s combined with the contents that exist nowadays. In this study, we try to solve the problem of information transfer by applying augmented reality technology in experiencing ecological park. We created an ecological park combined with the technology of Augmented Reality in the playground of D elementary school in Jeonju. The augmented reality contents are placed in the ecological park considering the flow of experiencing the ecological park. Users will be able to receive information more vividly through enhanced characters when experiencing ecological parks. As a result of the demonstration, it was confirmed that the experience is more immersed than the information transmission by the sign post.