Motivation is an important factor that affects English learning. The current researches mainly focus on the positive impact of motivation, and to a certain extent, it ignores the demotivation phenomenon in English learning. This empirical research dedicated to identifying the demotivation factors of senior high school students' English learning in rural areas in southwestern China and put forward corresponding suggestions. Questionnaires and interviews are used to collect data. According to the research, demotivation exists widely in English learning of students in rural areas in southwestern China. The main factors are teacher‐related factors, teaching environment, students and learning materials. In the end, I will combine my research to put forward specific suggestions for teachers, students, schools and parents, hoping to improve students' English learning efficiency.