Attitude is an important thing for a human being who always needs other people in their life. It can be used to understand someone’s feeling and someone’s personality. Attitudes can be viewed as a tendency to respond positively or negatively towards a certain thing, idea, person, situation, etc. This research discussed the undergraduate students of the Arabic Education Department’s attitudes toward English and the influence of the Arabic Education Department students’ attitudes toward English on their English competence. This research was a quantitative research type, which specified in regression. The population in this research was the PBA 3C students of UIN Walisongo Semarang. The total populations of the study were 41 students. The data was collected through questionnaire and documentation score of English Final Examination. In this research, the calculating data of students’ attitudes toward English that the mean was 92,97 located in interval 87 – 98. While the mean of students’ English competence was 68,09 that located in interval 63 – 72. This result was in the category “fair”. It was found that there was a significant influence of students’ attitudes toward English and students English competence. It could be seen from Regression result was > was 18,914 > 3,25 and Y= 22,385+0,492X. It meant that students’ attitudes towards English had affected students’ English competence. Therefore the hypothesis was accepted. It means that there was a significance of the Arabic Education Department students’ attitudes toward English on their English competence.