Abstract: This paper proposes an extensive measure for the non-dominated solutions，S-Measure.（1）Find the border solution set for problem I；（2）from the two levels orthoplan，select some reference solutions from the border solution set；（3）find the nearest solutions for each reference solution from the non-dominated solutions，and calculate its distance；（4）give the definition of S-Measure.S-Measure can be applied to complement the other quality measures in order to evaluate and compare multiobjective programming algorithms from different perspective.

Key words: multiobjective programming, non-dominated solutions, orthogonal design, S-Measure

摘要： 提出了一种新的非劣解前端宽广性的度量，S-度量。（1）粗略估计问题I的边界解的集合；（2）由二水平正交设计的思想，从这个集合中选取指定分布比较均匀的参考解；（3）从非劣解集中找与每个参考解最近的解，并计算其距离；（4）给出S-度量的定义.将S-度量与其他一些非劣解质量的度量相结合，从而可以对多目标遗传算法从多个角度进行评价和比较.

关键词: 多目标优化, 非劣解, 正交设计, S-度量