For conventional silver nitrate titration to measure chlorine ion content has difficulties on human factors, drilling fluid additives in low accuracy, large error, and low accuracy of drilling strata containing aqueous recognition problem, the ionic liquid chromatography technology was introduced as a new application in identification of  drilling formation water property. The work area aquifers with different levels of ion chromatography identify patterns were established. The recognition of water content was consistent with logging results. It showed that using ion chromatography with water based evaluation model has better feasibility, reliability, and accuracy. The ion chromatography aqueous recognition model has good prospect of popularization and application.