The purpose of the present study was to investigate the effectiveness of usingThe Edmodo Educational platformfordeveloping some EFL speaking skills for first year preparatory school students. The study adopted the quasi-experimental pre-posttest, experimental /control groups. Participants were first year preparatory school students. Two groups (30 each) were selected from Kafer El Madina Preparatory School in Husiniea city. The experimental group learned through Edmodo Educational platformfor developing their speaking skills. On the other hand, the control group received regular instruction. Instruments were: questionnaires designed for speaking skills approved by a panel of jury. Based on these speaking skills, a speaking skills test was developed and used as a pre-post-test. By the end of the experiment, the test was post administered to both groups to find out the effect of the Edmodo Educational platformon developing the experimental group students' English language speaking skills. Findings of the study were statistically dealt with via the Statistical Package for the Social Science (SPSS). It was found out that the experimental group achieved more gains in their EFL speaking skills. The results of the study were positive; the hypotheses were accepted.