In this article a new approach for the choice of control laws for objects with uncertain parameters in the class of structurally-stable mapping of catastrophe theory is proposed, which allows construction of a control system with high capacity of robust stability. The proposed control circuit uses function with three parameters of a controller and two state variables. This paper presents conditions for equilibrium states, and it explains how to create a practical design of a controller in order to increase the potential of robust stability in a very wide range. Conclusions are confirmed by numerical simulations.