The present study aimed to investigate the effectiveness of using Computer-Assisted Translation tools for developing translation skills for EFL learners. The study used the one group pre-posttest design. Thirty learners from the EFL Institution, Cairo, were randomly chosen to participate in the study. Instruments of the study included a list of translation skills to determine the skills needed to be developed, a suggested unit based on using CAT translation tool (TRADOS), a pre-posttest of translation skills. Results showed that using the suggested tool significantly improved the students' translation skills. It was recommended that CAT translation tool should be used in training learners on translation courses. Suggestions for further studies are provided in the light of the results of the present study.