Marking as one dramatic turnover in language teaching, task-based language teaching (TBLT) has proved itself beneficial and effective in bringing about real situations of language use to take place and in satisfying communicative needs of learners while the former methods were unable to meet actual demands of learners to communicate in the target settings. Accordingly, it has been duly embraced by practitioners and material developers simply because it specially pays serious and real attention to oral abilities. Relying on the theoretical background of this paradigm, the current study focused on role-play as a praised technique in task based language teaching (TBLT) to investigate and display its effect on boosting EFL learners' speaking skill. Following the termination of the study, the findings indicated for a positive effect of TBLT-based role-play technique on the candidates' speaking skill. (Contains 4 tables.)