The paper adds an expert system module, that is a predictionanalysismodulebasedontheartificialneuralnetworkintothe traditionalmanagementinformationsystem for the complexnonlinearpredictionto improvethe capability and automationof the MIS. The modulecarries out the prediction using the BP neural network. The BP neural network gets the inherentrelationbetween the inputs and outputs and the solution of the involved problem by adjustingthe weight of the neural network on line. This paper predicts the bookmarket of thepublishingcompanyusing the expert system. The result shows that themethodpossesses the excellent performanc, and can be used as an effective method forpredicting the bookmarket.