The finding is consistent with LIU Zhi-liang (2010) study, which indicates that LIU Zhi-liang said that positive attitudes to vocabulary learning. These findings therefore confirm previous results that indicated the similar from our study. But Wu, Lin-Fang (2013) study, he claimed a positive effect on language performance and students’ learning motivation, which internal factors was the most important factor. The study showed the different result from our study. In my opinion, the study is different because of attitudes and belief of the participants.