Abstract: Recently the direct current induced polarization sounding method is widely used to detect the ground water, due to its multi-parameters. Because of the different disturb degree in different work area, it is important to use muli-parameters reasonably and accurately, reducing more explanations and avoiding mistake explanation. Based on analyzing primitive practical data, the paper transformed partial parameters to ensure to use them accurately and to get the more reliable data. A case study shows advantages and limitations of partial parameters. The result indicates that the synthetic interpretation method of multi-parameters is worth to be widespread.