This study employed needs analysis approach to investigate EFL students’ needs to improve their writing skills. The data were collected from 28 EFL undergraduate students studying at the Department of English, Faculty of Arts, University of Zawia through the modality of questionnaire. The results suggested that the students believed that improving their writing skills is significant for their current study and their future career. The results also revealed that students needed to improve most of their writing skills and extending their knowledge about the writing aspects including content, organization, vocabulary, grammar, mechanics and others. These results implied that the students had limited knowledge of the necessary writing aspects, and they suffered lack of practicing writing in and outside their classrooms. Understanding the students’ needs to improve their writing skills, the study ended with suggestions and recommendations that might contribute in improving students’ writing skills.