The present scenario fact that the English is a language of modern technological and scientific developments, text is a primary tool for students to gain the knowledge in writing skills. However, most male Saudi students show minimum efficient in L2 writing skill and do not have sufficient competence for writing the authentic English passages. To enhance this various study were undergone to cope up the gap between the student's use of lexical and cohesive ties by applying task-oriented teaching. However, the immediate need to fill the gap, the researchers made pioneer study on this filed. The present study investigates analysis of lexical and cohesive ties usage in undergraduate students' writing by applying task-based language learning methodology. The study was performed by thirty-five students from an advanced ESL Reading class at King Saud University, Arts College in Riyadh for 15 weeks. This study has been investigated by Four English passages including behavioral psychology, scientific and two general passages throughout the semester respectively. The analysis of the obtained data proved that the students' language abilities in grammar and vocabulary significantly improved especially in the discourse analysis passages. In addition, the results of the study evidenced that students are more engaged and motivated during group work activities, and learn more about structure, identifying, cause and effect, purpose and function and if clause of analyzing passages. Proficiency of grammatical category results concluded among the 35 students, average 60% of the students were prefect in tenses, passive structures, if clause, cause and effect, purpose and function, documented 37.14,57.14,54.28 and 77.14% respectively. Overall, the present study concludes with pedagogical implications that ESL teachers might consider a task in their ESL classrooms.