为解决目前渗漏病害统计缺乏统一标准、统计结果难以量化的问题，通过层次分析法，建立地铁既有线车站及隧道区间的渗漏病害评价体系。基于实测数据及相关规范，划分出各病害分级评价标准。通过采用综合层次分析法、序关系分析法、熵权法和CRITIC法的组合赋权法计算评价指标的权重，经计算可得渗漏级别为最主要权重。建立模糊综合评价体系实现对各类型渗漏病害的评价，为实际工程渗漏治理方案提供参考。通过系统聚类法实现对渗漏车站及区间的分级，为病害治理的优先级提供参考。最后通过工程实例对本研究进行验证，证明该评价体系具有应用价值。

There is a lack of standardized water leakage statistics for water leakage in existing urban rail transit, which makes the quantified statistical outcomes challenging. Therefore, a fuzzy comprehensive evaluation system for water leakage in existing urban rail transit stations and tunnels is established using the analytic hierarchy process (AHP). Additionally, the water leakage classification standards are determined based on measured data and relevant specifications. The weight of each evaluation index is calculated by employing a combination weighting method that integrates AHP, sequential relationship analysis, entropy weight method, and CRITIC method. The calculation results show that the water leakage level is the most important weight. This system provides valuable reference for practical engineering water leakage treatment plans. The classification of water leakage stations and tunnels is ultimately achieved through a systematic clustering method, thereby providing valuable insights for prioritizing water leakage treatment. Finally, the practicability of the established system is validated through engineering examples.