Abstract Name : Novita Student No. : 0906102050016 Study Program : English Education Title : A Descriptive Study on Error Analysis of Students’ Writing Skill Keywords: Description, Error Analysis and Students’ Writing Writing is a process to construct sentences which demands students to learn language grammar in order to have a good writing. Meanwhile, students cannot comprehend grammar intensively so they often produce errors regarding to grammatical rules in writing. Therefore, this research attempts to find out what common errors committed by second grade students of SMA Inshafuddin on their writing of narrative text. The categorizations of errors are omission, addition, misinformation (regularization, archi-Forms and alternating forms) and misordering. The method used here is descriptive qualitative that reveals the description of the categorization of errors that committed by 22 students. The result showed that most students committed these four errors (addition, omission, misinformation and misordering) with the total number of the errors were 408 errors which misinformation was the most dominant error occurred on the writing with its total number of error was 229 and percentage was 56,2 %. Therefore, teachers should pay more attention to teach students some grammar items which relates to the errors that mostly produced in narrative text such as past tense rules, article, verb and noun inflections.