Most people think that games are the factor that affects students' learning. However, in recent years, many experts and scholars have suggested that the appropriate use of game-assisted instruction can enhance learning motivation and effectiveness. This paper developed a role-playing RPG games which combined with environmental conservation. We use a simple question and answer method to review the content of the course for the students. And the learning is no longer boring via the role-playing RPG grams. Moreover, the game developed in this paper can enhance the learning motivation of the students. Through the game, students will learn new knowledge, and understand the importance of environmental protection.