Vulnerability evaluation of lightning disaster is an important part of lightning disaster research and it is a typical multi-factor comprehensive evaluation problem based on index system. Multi-factor evaluation methods such as hierarchical zoning method, cluster analysis, analytic hierarchy process, principal component analysis and fuzzy evaluation are all applied to the vulnerability evaluation of lightning disaster. However, these methods need to determine the weights of each index artificially in the process of comprehensive evaluation, which leads to the subjective differences of evaluation results. Therefore, a comprehensive evaluation model of lightning disaster vulnerability is established by using projection pursuit dynamic clustering method. The case studies show that the method does not need to be given the weight of each index in advance, but evaluates comprehensively according to the characteristics of the sample data. The results are objective and easy to operate, which provides a new method for the objective evaluation of lightning disasters vulnerability.

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