Motivation plays a significant role in second language acquisition and teaching. Though it has been studied for decades both by practitioners and researchers, the author still finds that the major research centers on studying motivation of learning and acquiring the language, particularly, the English; while ignoring another opposite perspective: demotivation of language learning. Based on the literature review, the investigation on demotivation factors started very late both at home and abroad in academia thus producing few achievements so far. Due to this research gap, the writer thinks that the study on demotivation of L2 learning and acquisition should be expanded further. Therefore, this paper explores the demotivation factors on learning English among students from vocational education sector by interviewing nine participants from a higher vocational college in Suzhou Industrial Park, Suzhou City, Jiangsu Province in the People’s Republic of China. Through analyzing their responses and learning situations via questionnaires and semi-structured interviews, the author concludes that teachers’ factors on learners’ demotivation are decreasing while issues including lack of learning strategies, lower learning aptitude, previous unpleasant learning experience, and out-of-dated textbooks are turning to be the main causes for students’ demotivation in learning English in the context of higher vocational education. At last, the writer proposes some coping strategies for teaching practice, such as building up students’ self-confidence and innovating the current textbook, etc. Moreover, the relevant studies in various contexts should be conducted in the future for enriching the existing literature and giving inspiration to teaching practitioners.