Hydraulic aqueous fluid with high hydraulic support mostly used mine water liquor, type of hydraulic support transmission medium and usability were determined by characteristics of underground liquid water. 596 test results of liquid water quality in 2013 were selected in this paper to make statistics, zwitterions including water hardness, SO₄^2- , Cl^- , HCO^3- and so on were analyzed, at the same time, relevant solutions were put forward as well.