This paper concentrates on the dynamic analysis of tall liquid storage tanks by added mass method. Only the impulsive component of the hydrodynamic response of the tank–liquid systems is considered in the analyses (the convective component is not included). Attention is given to ground supported, anchored, dome roof tanks which have the similar heights of 12.19m and the aspect ratios (H/R) of 2.00, 1.52, and 1.33. Tanks are considered to be partially filled with water of 8.50 and 10.90m which are approximately equal to 70 and 90% of their heights. The general purpose finite element package ANSYS is used to perform the time history analysis and to model the tanks. Tank roof and wall are meshed by shell elements and the liquid is modeled using mass elements as the equivalent load. A Rayleigh mass proportional damping matrix is defined in the impulsive significant mode. The Newmark Method is used to perform the dynamic analysis during earthquake ground motion. Results of the present method are compared with the mechanical analogue proposed by Malhotra et al., 2000 which shows good promising agreement. This means that the added mass approach can be used for evaluating dynamic response of the considered tall liquid storage tanks. It is found that the accuracy of the results of the method is raised in tanks with higher aspect ratios and in higher liquid depths.