Proton Exchange Membrane as one of the most advanced types of fuel cells plays an effective role in renewable energy generation and supply manifold is one of its main subsystems. Aiming to cover nonlinear behaviour, this study presents a new robust method for controlling the supply manifold pressure at the cathode side. To consider the uncertainty effects as well as the nonlinear behaviour of the supply manifold, a delayed transfer function model is considered. The proposed reset control approach improves the transient response in regulating the supply manifold pressure at the cathode side. The simulation and comparison results in MATLAB environment show the capabilities of the proposed method to improve the transient response of the system from different perspectives and stability despite of uncertainty effects.