Abstract: The steam generator water level of nuclear power station often suffers from various uncertainties, which challenges conventional linear water level control systems in meeting qualified safety and economic operation demand. In this paper, the state feedback H^∞ controller, the pole placement H^∞ controller and the H^∞ tracking controller were designed with linear matrix inequalities (LMIs) for steam generator water level control system in nuclear power station with uncertainties. Simulations were carried out for validation and comparison at different steady operating points and characteristics of corresponding control strategy were obtained.