based on the test,the mix-well flow calculation is classified during artificial supply to the over pumping area.The mix-well flow variational process is quantitatively analyzed,including the artificial supply efficiency.The artificial supply process is analyzed using Grapher sysytem. It is found that it existed an attenuation during artificial supply process by using mix-well in the over pumping area,which finally tended to stabilization.There was also silt by using eau douce to artificial supply.The research experience can be extended to solve the same problem occurring in cities and irrigation areas.