Abstarct: In this thesis explain some ways for minimizing of feedback matrix’s norm. importance of this theory in on reason that this need less price and time normally. Genetic algorithms eemploys for Simultaneous control systems. Control of systems with this ways need equations and inequations Genetic algorithms use from reply of this equations and inequations and make new function with them that they betterr than previous answer. In this thesis An analytical way employs for finding of answer then A numerical way peresent for growth of answer. At the end of part come an example for more clarity.