This study presents an experimental analysis of the operational characteristics of a hydraulic cylinder and develops a model of the hydraulic servo mechanism under varying load comditions. Initially, a test setup was assembled, incorporating a hydraulic cylinder and a servo valve to simulate the servo system. The cylinder's dynamic responses including piston displacement, velocity, and pressure variations in both chambers were examined through experiments using various voltage signals applied to the servo valve. Subsequently, a mathematical model of the system was formulated, incorporating equations governing the servo valve behavior, fluid continuity, volume changes, force equilibrium, and frictional effects within the hydraulic cylinder. A simulation program was then built, and the system's dynamic characteristics were simulated under identical input conditions as those employed in the experimental trials. The simulation outcomes revealed a high degree of correlation between the piston displacement and chamber pressure variations when compared to the experimental measurements.