This study aims to analyze Arabic language errors from Howard Douglas Brown’s perspective, identifying three errors: interlingual transfer, intralingual transfer, and learning context. An interpretive paradigm and qualitative approach were used in this study using a case study method atPerguruan Tinggi Daarul Ukhuwwah, Malang. Data was collected through observation, interviews, and documentation, then analyzed using qualitative analysis and data triangulation. The study results show that students often make mistakes in Arabic grammar, fossilisasitransfer, and context of learning. Students ' perceptions of language errors show a basic understanding of the second language learning process, where errors are considered a step in understanding and using Arabic. The implications of this study include expanding knowledge of the needs of Islamic boarding school students in learning Arabic and adapting the curriculum and teaching methods to increase the effectiveness of Arabic language learning in Islamic boarding schools.