Diversified development of modern manufacturing enterprises need to simplify the application, inclusive of equipment and investment already, reduce the product cost, make the flow of information smooth and fast with business going global. These new demands and new technologies require enterprise information system to be integration, intelligent, multimedia, network and distributed developed. Traditional MIS is unable to meet all these. A collection of field bus integrated automation control network form the new information enterprise network frame with the Intranet as the management decision-making layer and the field bus as control layer, WEB technology throughout the network, the integrated automation system of an information integration with the characteristics of being intelligent, multimedia, network and distributed developed. This has important significance to improve the system of management decisions and global event handle and grasp ability. This paper firstly introduces the concept and composition of integrated automation system architecture, and in-depth analyzes the web technology and function, and proves the feasibility of application of web technology in integrated automation system for monitoring through the practice. The effect of monitoring system development technology is predicted in the end.