Accompanying with rapid development of economy and society, groundwater development and utilization has been continued to grow rapidly in our country, the water level decline caused by overexploitation of groundwater, the land settlement and other problems gradually became more and more obviously, and the change law of underground water flow field has an important theoretical significance for the formulation of groundwater mining plan. In this paper, taking Pingdu city in Qingdao city as the research background, considering regional topography, geological structures, geological unit characteristics and other factors, a numerical model of the groundwater flow field in the study area has been established, and the prediction and analysis of the dynamic evolution trend of the groundwater flow field under different groundwater exploitation schemes have been carried out. It is showed that if groundwater is mined in 2022, the water level will decrease by about 5m after 10 years. Accompanying with the reduction of mining intensity, the speed of water level decline gradually decreases. When the mining volume is reduced by 30%, the water level drops about 2.8m after 10 years.