Abstract: A sentence may be structurally correct in terms of word order but may leave the reader with more than one interpretation. When a word or sentence has more than one interpretation it is called an error. Error is a phenomenon that deserves careful observation. Errors bring non-specific communication effects. So, errors can cause different interpretations for each reader. Therefore, error sentences need to be considered by teachers when controlling student assignment results, especially in text writing assignments. This research was proposed as a qualitative descriptive research that aims to find students' sentence errors in writing. In this study, data will be collected from an English teacher in class VIII B with documents taken from 10 students in class VIII B, where students in class VIII B are the object of research because students in that class make sentence errors more often in writing recount texts than other classes. In this study, researcher used documentation techniques to collect data. The results of the analysis of this study showed that 45 error sentences were found in the students' recount text writing. In detail, the researcher found 21 Omission, 11 Addition, 6 Selection and 7 Ordering. By looking at the results of the study, it can be seen that the most frequent sentence errors in students' writing recount texts were Omission.