The characteristics of groundwater movement and its quality after shaft well irrigation and drainage in Hami basin,Xinjiang Wei Automous Region are analyzed by using MODFLOW and MT3DMS.Calculated results show that the shaft wells make groundwater level to decline,but salinity may exist in unsaturated zone without horizontal drainage.Salinity is enriched after a long time and thus may harm the safety of soil and groundwater when the exterior conditions change.Therefore,the monitoring system should be established to guarantee stability of regional hydrogeology and to avoid environmental disasters.Actually,how to find the balance area that can control soil salinity,groundwater salinity,and falling groundwater level is the key to keep sustainable development.