This study was targeted to investigate the effect of task based language teaching on students’ writing skills and assessing their perception towards TBLT in Fagita General Secondary and Preparatory School in the academic year 2022. A group of grade ten students (N=58) was involved in the experimental group based on the use of Task Based Language Teaching method in the students’ writing skill experiment process in the study and a group of students in this grade level (N=56) was involved as a comparable group. To achieve the aims of the study and to find answers to questions of the study, the researcher used quasi-experimental research design. A post-test was employed to measure the effects of the intervention task. A close ended questionnaire was also conducted to authenticate the result of the tests. An independent sample T-test was employed to see the level of significant difference between the two groups before and after intervention in terms of paragraph writing skills. A paired sample T-test also was used to determine the improvement level of experimental group before and after the training program. A statistically significant difference between the pre-test and post-test of the two groups was observed which indicated that the use of Task-Based Language Teaching writing practice helped students to improve their writing skills (p<0.05), 0.004. Thus, teachers of English Foreign Language should expose their students on the regular use of various teaching writing activities related to the real world conditions and methods like task based writing to help them to go for and back in their writing tasks during the writing classes. And as the study proved that Task Based Language Learning is effective in teaching writing and high school students have a positive perception on writing tasks. However, further research needs to investigate the students’ creativity and motivational levels, and the effectiveness of different writing tasks and what kind of tasks enjoy learners more in teaching writing students in particular and English Language in