This study aimed to investigate the students’ problems in learning grammar at an English course in Yogyakarta based on teachers’ perspective. In addition, this research was to find out more about the students’ problem when they learnt about the English materials. In this study, the participants mention the students’ problem caused by the material problems faced by the students. To accomplish the objectives of this study, the researcher conducted a qualitative research design. The data were obtained by interviewing four teachers of English grammar at one of English courses in Yogyakarta. Following this, they were the teachers who had taught the grammar in a monthly program. The findings revealed that there were four findings towards the problems faced by the students when they learnt grammar. The problems is related to the linguistic problem,. There were also more explanations about the students’ problems in learning grammar which occured in the linguistic problems. On the part of the problems, there were four problems experienced by the students. Additionally, the problems are divided into four sections based on the syllabius at that course. Therefore, those problems were learning part of speech, sentence, tenses and WH question.