Abstarct: Scientists involved in tsunami research have always been very interested in models, which can accurately predict the propagation of tsunamis. One of the most important reasons was and still is providing the necessary data for tsunami warning systems. The numerical model which is used in this study is baxsed on Tunami numerical model. This model is developed and improved in this study and applied for modeling of tsunamis in Caspian Sea. Modeling of Tsunami is done in two phases, source and propagation. In first phase after data collection about the faults of Caspian Sea, sea floor deformation and initial wave were modeled. In the second phase the multitude of tsunami wave propagation. In different periods, from the start time until reaching the shore was modeled. The results of numerical model indicate that the shores located in the middle of Caspian Sea, will be affected more than others by tsunami, as well as the biggest tsunami waves will be generated in western and eastern shores of the middle Caspian Sea.