In this paper，with the help of multiple objects decision theory and computer technology and on the basis of analyzing user's repuirements，some models about scientific research duty forecast and expenses distribution are set up and the property and relation of these models and model's solution are analyzed. According to the features of these models and decision. The main function of the system is described. We believe in that，to use the system will make the scientific research expenses management more convenient and will make fuller use of the limited expenses.