Intelligent use of data and information in a large company for management decisions are the essential requirements of all managers. In addition, the necessity of paying attention to the environmental competitiveness increases the importance of responding to these needs. Information systems and tools of IT in recent decades have played a special role in increasing the respond to these demands. One of the most important tools in this area is Decision Support Systems. Regarding the high volume of data and information, these needs are very important in banking system. In this study we will design a Decision Support System for resource mobilization in Iranian Agriculture Bank. Logical model for achieving the goals and the technical characteristics of the system in detail and some of the most important advantages of the system are introduced. According to the results of this study, management decision support systems can improve the quality of decision making in Iranian banking system.