The present research focuses on demotivational factors, motivation, and amotivation concerning junior high school students in the Japanese EFL context. In particular, the study focuses on the overall tendencies of demotivational factors, motivation, and amotivation, and the relationship between amotivation and demotivational factors, and also identifies different learner tendencies in language learning for Japanese junior high school students. The participants were 388 public junior high school students: 122 students from the 1^st grade, 144 students from the 2^nd grade and 122 students from the 3^rd grade. The results indicated that students tend to show high intrinsic motivation and identified regulation and showed low amoviation, and in correlation analyses, amotivation was highly positively correlated with demotivating factors. Also, the different group structures of motivating and demotivating factors revealed underlying student characteristics in language learning among junior high school students in the Japanese EFL context.