This study was conducted to survey the effect of the role-play techniques on improving the speaking skill of Iranian intermediate English learners. For this sake, 60 female learners in the age domain of 18-26, who were studying at Kish institute, were selected based on their achievements on the OPT. The goal of the OPT was to homogenize the participants based on their proficiency level in English. The participants were divided into two separate groups; the experimental group and the control group. Each group had 30 participants. Then, the experimental group got treatment based on the use of role-play techniques. At the end of eight weeks, a posttest of speaking was administered to both experimental and control groups. Then learners’ accuracy in simple present, simple past, and present perfect were assessed. The results of this study demonstrated that the experimental group that was treated by the use of role-playing techniques in teaching acted much better than the control group in English conversation post-test. Hence, the result of this study proved that the role plays techniques teaching has a noticeably positive effect on Iranian intermediate English learners’ conversation ability.
