Abstract: The safety monitoring and emergency warning and disposal of urban rail transit equipment have been the focus of operation management. Through analyzing the circulation relationship between large amount of equipment data from collection and monitoring to emergency response under the network operation mode, this paper studied the classification and early warning system, and formed a set of active monitoring and early warning scheme based on automatic equipment data collection and business logic self-determination, solved the problem of various equipment data status and difficult to screen key alarm information under the monitoring of line network. In the paper, the input and output mode of computing service was constructed to implement the standardized processing of business data calculation, and the loose coupling management of logical operation and early warning; the alarm service management was constructed to realize the alarm data storage update and synchronous display of multi terminal. The scheme can help the operation units to find potential fault threats while ensuring the comprehensive collection and monitoring of equipment data of all specialties, and start emergency response at the first time to improve the safety guarantee capability of urban rail transit operation.