Abstract:Due to relationship between groundwater conductivity and salinity, during the period of the groundwater resource investigation, by the way of field measurement of groundwater salinity, groundwater conductivity can be estimated. In order to find the correlation between the two parts, through statistical analysis on groundwater salinity and conductivity test data of Lubei plain in Shandong province, it is found that under the condition of salinity ≤ 3g / L, there is a good relationship between conductivity and salinity linear, and different types of linear anionic water chemistry relationships are not the same.