Several studies and reports have indicated the prevalence of hepatitis D virus infection in many parts of the world at different rates , Ranging from areas of epidemiological and areas with a low prevalence of it. Till now there is no study in Syria shows us the prevalence of viruse Delta in chronic hepatitis B patients . The aim of our study was to determine the current prevalence of hepatitis D in chronic hepatitis B patients . And to take appropriate measures in dealing with these patients due to the increased risk of liver disease in the event of injury by it . 77 patients with chronic hepatitis B certainly proved with PCR analysis 25 women and 52 men visiting the center of hepatitis in Latakia were tested for antibody to hepatitis D virus (anti-HDV) by ELISA test . The results indicate a positive antibody in three patients (women and 2 men) and the prevalence was 3.8% , which point to a moderate prevalence of hepatitis D comparing with neighboring countries.