The method is suitable for the technical field of smart grids. The invention provides a distribution network operation and maintenance monitoring method and system. The method comprises the followingsteps: when a dispatch issuing notification sent by a power grid dispatching operation management system is received, obtaining a to-be-executed item-by-item dispatch list according to the dispatch issuing notification, generating an operation ticket according to the item-by-item dispatch list, and performing anti-error checking on the operation ticket according to a preset rule, wherein the preset rule is an anti-error logic expression or an anti-error topology, when the operation ticket passes the anti-error check, the operation ticket is pushed to a power grid management information systemfor auditing, when a notification that the operation ticket passes the auditing sent by the power grid management information system is received, the operation ticket is outputted, the execution of each operation item in the operation ticket is monitored, an execution result after each operation item is executed is obtained, and equipment state information is updated according to the execution result, thereby improving the invoicing efficiency of the operation ticket and the execution safety of the operation ticket, and further improving the safety level of a distribution network operation.