The MIS (Management Information System Management Information System) - by System, is a person, computer and other peripheral equipment to composed of Information collection, transfer, storage, processing, maintenance and use of the System. It is a new branch of science, its main task is to maximize the use of modern computer and network communication technology to strengthen enterprise information management, through to the enterprise has a human, material and financial resources, equipment and technology resources investigated understanding, establishing the correct data, processed, and compiled into various information material timely provide management personnel, in order to carry on the correct decision-making, to improve the management level of enterprises and economic benefits. At present, the enterprise of computer network has become the enterprise technical reform and improve the management level of the enterprise the important means. Along with our country and the world information superhighway connectingrails, enterprise through computer networks and information for the enterprise will bring huge economic benefits and social benefits, enterprise's office and management will be toward, faster and more efficient paperless direction. The MIS system usually used for systems decision-making. So how to form an information system network?