The conclusions of this study were as following: 1. There were significant differences in experimental group students on "learning attitude" ,"learning needs" ,"self-efficacy" ,"achievement motivation", and the "total scores" between their English learning motivation pretest and posttest. On the other hand, there was a difference significantly between the experimental group and the control group on "learning attitude" in English learning motivation, too. 2. The experimental group held positive attitude toward Computer-Multimedia Teaching. "Game Time" and "Singing Time" were students' favorite activities, and they considered Computer-Multimedia Teaching was a good way to learn English. The experimental group suggested teacher should using Computer-Multimedia Teaching in the future English class continuously. Finally, some suggestions for vocational high school English teachers were also provided.