Abstarct: Saadat Shahr plain with area about 130 km2 is located beside of Saadat Shahr city at 120 km North East of Shiraz. There is a water table aquifer in this plain that its containing water is extracting by 678 pumping wells, mainly for agricultural consumption. Hydrogeological investigations shows that aquifer is under recharge of it’s environ mountain and also Sivand river. Also it had seen that groundwater flow direction is from east to west. Depletion of groundwater was about 16 meters at east of plain and it receives to about zero at west of aquifer at the 13 years study period. A Hydrogeochemical investigation of groundwater was baxsed on electrical conductivity of water and also major anions and cations. It was seen that quality of groundwater in the aquifer is depends on recharge from carbone formations, Sivand river and also discharge of aquifer. It was seen that increase of total anion and cations in ground water is usual from east to centre of plain, and in the centre district due to pumpings at high volumes, common flow of groundwater becomes weak and due to this total dissolved ions obviously is more than beginning of plain. Recharge from Sivand River and carbonate formations causes to decrease in the dissolved ions, in continuing the groundwater flow.