提出一种基于振型相关度的网壳结构状态特征向量,该向量的构造仅使用少量模态和有限测点.通过一个网壳结构模型试验分别设计结构质量和刚度改变的8个结构状态工况,实测各工况的状态特征向量,并对其性质进行检验,结果表明,所提出的结构状态特征向量具有较好的敏感性、可辨识性和抗噪性.最后,通过对试验模型的有限元分析,证明了状态特征向量用于损伤识别的可能性. This paper presents a state-dependent eigenvector of the reticulated shell structure based on the mode shape correlation, which uses only a small number of modal and finite measuring points.A structural design of the reticulated shell structure is used to design eight structural state-of-structure The results show that the proposed eigenvector of structure state has better sensitivity, recognizability and anti-noise performance.Finally, by means of testing the state eigenvectors of each condition, Finite element analysis proves the possibility of using state feature vectors for damage identification.