Attendance is one of importance scoring aspects for students in university. Students will get failed score if they do not attend the class the toleration number in university’s policy. In fact, there are some students do not attend the class more than the toleration number of absence. In English Education Department of Universitas Muhammadiyah Yogyakarta, the toleration number of absence is four times of total sixteen meetings. If the students have absence more than four times, it indicates that the students have high level of students’ absenteeism. In English Education Department of UMY, the level of students’ absenteeism has not been felt so problematic. There are three to five students not attend the class in a meetings. It means that more than 90% students attend to the class. However, it could bring significant impacts to students and teacher at English Education Department of UMY, which is the students may left a chance to achieve learning when they are absent. Besides, the absent student could give influence to another student to do absent at the similar time. Students’ absenteeism could also give impact to the teacher for instance, it could disturb the classroom management and teaching plan of the teacher. This research aims to investigate the factors that trigger students’ absenteeism at English Education Department of Universitas Muhammadiyah Yogyakarta. The researcher used qualitative research design to explain the research finding. The researcher took an interview with six students from Class C at English Education Department of Universitas Muhammadiyah Yogyakarta batch 2013 to collect the data. The finding showed that there were six categories that trigger students’ absenteeism at English Education Department of Universitas Muhammadiyah Yogyakarta. Those categories are students’ factors, academic factors, family factors, community factors, unexpected factors and environment factors. The recommendations are suggested by the researcher based on the research findings. The recommendations may be useful in decreasing the cause of students’ absenteeism at English Education Department of UMY.