Abstract: With the development of network technology and the continual changing of network application required by production and management of enterprise, the goal of integrated management and control was put forward. Owing to the difference of structure of control-network and management-info-network, their corresponding characteristics and integration technology should be analyzed and studied in process of system integration. The paper described key technologies for realizing the both integration and their best appropriate application occasions corresponding to their advantages based on introducing of relative application range, action and function of the control-network and management-info-network of enterprise.