In this article, the volume strain in Hefei and Huangshan Seismic Stations, and cave strain of Jingxian Seismic Station are analyzed with over rate analysis (ORA). The results indicate significant abnormal changes about 2 months before Anqing earthquake, abnormal morphology is consistent with previous studies. The results of water tube tiltmeter also indicate significant changes, but the change shape is different from cave strain.%采用超限率分析法,处理距离安庆地震较近的合肥、黄山地震台体应变和泾县水管倾斜仪及伸缩仪数据.结果发现:体应变数据均在震前20天左右出现明显异常变化,异常形态与前人研究基本一致;水管仪东西向超限率分析结果具有异常变化,异常形态与体应变不同.
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