Abstract Name : Siska Kardina Student No. : 0906102050060 Study Program : English Education Title : Grammatical Errors produced by Students in Writing (A Qualitative Study at the First Grade Students of SMP Negeri 2 Darul Imarah, Aceh Besar) Keywords: Error analysis, Surface strategy taxonomy, Writing First grade students of SMP Negeri 2 Darul Imarah commonly produce errors in writing regarding in terms of grammatical aspects. It is important to know the common grammatical errors produced by the students. The present study aims to analyze the common errors committed by the first grade students of SMP Negeri 2 Darul Imarah in their writing. The method used in this study is qualitative. To obtain the data, the participants who involved 20 students were asked to describe about their school. Furthermore, the writer followed the Error Analysis (EA) procedures to analyze the data. Moreover, the errors were classified into surface strategy taxonomy. The result shows that the most common errors were omission (40%) followed by addition (25%), misformation (20%), and misordering (14%). In conclusion, the students still have a serious problem in term of grammatical aspect, especially omission of noun inflections and subjects or verb and possessive signs. This finding might be a good reference for teachers, especially in SMP Negeri 2 Darul Imarah to emphasize their teaching in grammatical aspects before starting the teaching and learning process.