为改善六自由度外固定器在骨治疗中的复杂结构、大重量、CT伪影及冗余自由度等问题，有必要针对差异化的治疗需求对并联外固定器进行构型优化。基于模块化理念，将并联外固定器组成分成环模块和连接模块，定义组成模块的类型、装配以及连接规则；根据优化算法，设计并联外固定器的数字化构型方案，将三维模型转化为二维表征；结合实际存在性要求和优化要求，提出“刚柔结合”的外固定器构型约束要求；针对不同治疗需求，对比两种多目标优化算法的效果，选择鲁棒性更强的算法作为构型优化方法；最后通过实物模型和仿真模型的结合验证，证明了得到的优化构型能解决目标需求且构型稳定，证明了提出的构型优化方法的有效性。

To address the issues of complex structure, excessive weight, CT artifacts, and redundant degrees of freedom in six-degree-of-freedom external fixators during bone treatment, a configuration optimization approach for parallel external fixators was proposed to meet differentiated therapeutic requirements. Based on a modular design concept, the system was decomposed into ring modules and connecting modules, with definitions established for module types, assembly protocols, and connection rules. Utilizing optimization algorithms, a digital configuration scheme for parallel external fixators was developed, transforming three-dimensional models into two-dimensional representations. By integrating feasibility requirements and optimization objectives, a "rigid-flexible coupling" constraint framework was formulated for the fixator configuration. For varied clinical demands, the performance of two multi-objective optimization algorithms was compared, and the more robust algorithm was selected as the configuration optimization method. Finally, through combined validation using physical prototypes and simulation models, the optimized configuration demonstrated effectiveness in resolving targeted clinical challenges while maintaining structural stability, thereby verifying the proposed optimization methodology.