The inversion imaging results and resolution of the three-dimension resistivity inversion imaging method based on damped least squares theory was analyzed with the example of water-filled caves detection simulation. The results show that this method can achieve good three-dimen-sion location and shape recognition of underground low resistivity anomalies in a certain depth range, to provide a reliable reference for geological interpretation.%采用基于阻尼最小二乘法的三维电阻率反演成像方法，以含水溶洞探测模拟为例对其反演成像效果和分辨率进行了分析，结果表明该方法能够较好地实现一定埋深范围内地下低阻异常的三维空间定位和形态识别，为地质解译提供可靠的依据。
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