针对遗传算法的误导性及参数控制等问题 ,提出一种基于模糊优化设计思想的模糊遗传算法 .将该方法结合分层的染色体结构构成混合智能优化设计方法 ,并将它应用 MIMO的典型 H∞控制系统的设计 .仿真试验结果表明 ,该混合智能优化设计方法有效 . Aiming at the problems of misleading and parameter control of genetic algorithm, a fuzzy genetic algorithm based on fuzzy optimization design is proposed. Combining with hierarchical chromosome structure, this method forms a hybrid intelligent optimal design method, and applies it to the typical H∞ The design of control system.The simulation results show that the hybrid intelligent optimization design method is effective.