Intercrystalline　and　pore　brine　develop　extensively　in　the　Heibewadi　research　area　which　is　located　at　south　foot　of　Altun　mountain　of　Qaidam　basin.　In　central　area,　intercrystalline　brine’s　depths　range　from　5m　to　90m.　In　northwest,　south　area　and　central　deeper　area,　pore　brine　develops　under　intercrystalline　brine　layer.　The　2　types　of　aquifers　have　strong　yield　property,　TDS　is　200-350g/l　with　average　of　276g/l.　Main　salt　compound　can　be　mined　out　economically.　According　to　analysis　result　of　intercrystalline　brine,　TDS,　Cl-,　Na+,　K+,　Mg2+,　Li+　irons’　grades　are　very　steady.　That　mean　intercrystalline　brine　exist　in　the　water-salt　system　under　balance.　Only　the　stability　of　Ca2+　and　SO42-　are　slightly　poor.　According　the　Kurtosis　characteristics　analysis,　Ca2+,　SO42-　are　no-normal　positively　platykurtic　distribution,　K+,　Cl-　and　PH　are　normal　positively　platykurtic　distribution.　These　2　groups　fall　into　a　sub-class.　And　the　combined　with　normal　negatively　platykurtic　distribution-TDS　and　fall　into　platykurtic　distribution　group.　Mg2+,　Li+　are　normal　positively　peaked　distribution;　Na+　is　normal　negatively　peaked　distribution.　They　all　belong　to　peaked　distribution　group.　According　to　Na+,　K+,　Mg2+//Cl-H2O　quarternary　phase　diagram　and　Na+,　K+,　Mg2+//Cl-SO42-H2O　pentabasic　phase　diagram,　the　chlorite　and　magnesium　sulfate　subtype　have　different　hydro　chemical　characteristics　and　salting-in　and　salting-out　rules.　©　2018　Trans　Tech　Publications,　Switzerland.