In this study, 250 Chinese High School students (136 high achiever and 114 low achiever) and 277 Japanese high school students (134 high achiever, and 143 low achiever) were surveyed to assess the relationship between their English learning motivation and their English achievements. The results indicated that concerning students who were in different achievement levels both in China and Japan, the motivation affecting their English achievements were varied. Nevertheless, students who were in the highachieved groups from the two countries were found to have the same motivation that had a significant influence on their English achievements.