Abstract: In order to implement the visualization, refinement and centralized management of network security policies, and integrate the automatic management of network security policies into the daily network operation and maintenance work, this paper respectively from the perspective of network security and workflow studied the optimization and cleaning technology of network security policies, security topology domain management technology, modeling and analysis technology, and strategy emergency response technology, built a visual management platform based on network security policy. The platform provided functions such as rapid detection of non compliant security policies and real-time monitoring of network firewall status. The practical application in operation and maintenance management shows that the platform can ensure that network security policies meet the requirements of compliance management and security control, achieve continuous compliance operation and maintenance of network security policies, and improve the application effect of firewall and the overall level of network security defense.