Remotely operated vehicles (ROVs) are being used worldwide for various tasks such as environmental survey, structure inspection, pipeline tracking, mine hunting, hull cleaning, and even in the recovery of wrecks. The analysis of their
hydrodynamic characteristics is important. The easiest way to obtain hydrodynamic characteristic is by simulation by using software of Computational Fluid Dynamic(CFD). Hydrodynamic characteristics can be obtained by fluid dynamic
visualization and simulation of CFD. In this study, the hydrodynamic design process of the robot body is described in detail. Optimal body design process with compromises among conflicting design requirements is given. The results showed an increase in the hydrodynamic characteristics of the optimal ROV design indicated by the value of drag, pressure and velocity contours and calculation of stability. Analysis of hydrodynamics characteristic with the consideration of velocity and pressure contour was done by using software of ANSYS.