Groundwater level dynamics is a complicate nonlinear system due to the effect and limitation of its natural and human factors.It is important to predict the change of groundwater level exactly in exploiting water resources of an irrigation area.Groundwater level change of typical well in Weibei irrigation area is predicted by artificial neural network(ANN) according to its high nonlinear function of parallel distribution processing.Result from the study shows that ANN may give a high precision and has a great value of extension and application.