A 3-DOF Stabilized Platform system is fabricated to reject angular motion disturbance and keep its top plate leveled with respect to horizontal axis. The objective of this paper is to develop a control system design for multi-input multi-output (MIMO).Stabilized Platform, which guarantees maximum performance as well as robust stability. Two facets of this article are system identification and control design. A set of experiments is performed for system identification and finally a feasible model is selected. A control design procedure is developed based on H∞ optimization, which is used to design a controller, which explicitly trade between nominal performance and robust stability. Finally, we consider the issue whether the H∞ optimal controller is better than classical compensator. It is shown by experiments that design through H∞ is much better than classical controller design for robustness as well as performance. These design choices are evaluated by simulation results and rigorous testing on actual Stabilized Platform.