Many studies demonstrate that Digital Game Based Learning (DGBL) can foster learning effect. The purpose of this study is to survey whether the online game in junior high school students can encourage learning effect in Taiwan's History. So, the research applied Interactive Game-based Learning System (IGLS) to junior high history teaching as an ancillary tool to enhance users' learning motivation and academic performance. After a four-week experiment conducted on eleven students, the paired sample t test analysis considerably impact on experimental group to significance .05, and one-way ANCOVA showed login IGLS the number of days every week more learning effect to be better. Besides, questionnaires exhibited that IGLS not only magnetized over ninety percent of students' participation but invigorated their learning will. The research presents positive result on enhancing students' learning motivation and academic performance. (Contains 9 tables.)