提出了多目标结构模糊优化的分层序列法，首先把原多目标模糊优化问题分解为一系列单目标（ 或多目标） 模糊优化子问题，该子问题用最大最小法求解。最后可以按着目标函数的重要程度给出原问题模糊最优解。最后用一个三杆桁架的最小重量与变形的模糊多目标优化设计问题证明了该方法的正确性 This paper proposes a hierarchical optimization method based on multi-objective fuzzy optimization. Firstly, the original multi-objective fuzzy optimization problem is decomposed into a series of single-objective (or multi-objective) fuzzy optimization sub-problems. The sub-problem is solved by the maximum-minimum method. Finally, according to the importance degree of the objective function, the fuzzy optimal solution of the original problem can be given. Finally, the correctness of this method is proved by the fuzzy multi-objective optimization design problem of the minimum weight and deformation of a three-bar truss