ABSTRACT The study investigated the effect of using Reciprocal Teaching Strategy on developing speaking skills among second year preparatory stage students.  First, two classes consisted of sixty-three students, in Abu-Elreesh Qibly Preparatory school in Aswan Governorate, were randomly assigned into an experimental group and a control group. The experimental group received an instruction using Reciprocal Teaching strategy and consisted of 31 students, and the control group received a regular instruction and consisted of 32 students. A speaking test was conducted and administrated using a speaking assessment rubric. The research was conducted in November and December, 2020. Comparing the mean scores of the two groups in the posttest showed that: There is a statistically significant difference between the mean scores of the experimental group and the control group at (0.01) level in overall speaking sub-skills and in each main speaking sub-skill separately. Which reveals that the experimental group outperformed the control group in overall speaking performance in general and in each main speaking subskill of the study.