This study aimed to measure technical efficiency of Islamic banks in Syria. This study used data envelopment analysis (DEA) method to estimate overall, pure and scale technical efficiency during the period (2010-2015). to that end, constant return to scale model and variable return to scale model was used. It has also been using windows analysis technique in order to follow banks performance during the studied period. This study also followed Intermediation approach for the choice of variables banking inputs and outputs.