In everyday life machine have a strong role, therefore investigation in machine elements are desired for many researchers. Piston ring is one of important component of engine. In order to understand the lubricant oil consumption, friction, wear, the first step is to analyze a Piston-Ring behavior. For this reason a theoretical models are considered and behavior of pressure in several situations are studied. This study is aimed to survey steady state and transient analysis condition among the Piston Ring. Also behavior of surface feature (Texture) on the lower surface is be modeled in some time step. In this thesis by using MATLAB, a suitable cavitation algorithm with an iterative method is established.