The invention relates to a distribution network account transaction management method based on a DMS system. The method comprises the following steps: triggering graph-model transaction by a GIS (Geographic Information System), and generating a machine account transaction information list from a machine account subjected to transaction; transmitting the account transaction information list to theDMS system through an information interaction bus; analyzing the account transaction information list by the DMS system, and displaying the analyzed account transaction information list on a human-computer interface of the DMS system; automatically importing the account transaction information into a database of the DMS system and automatically updating the account transaction information to a real-time database after the account transaction information is manually audited; locking the association rationality between the key account contents of the main equipment of the power distribution network; performing scheduling operation information transmission by the distribution equipment, so that the distribution network master station schedules and transmits the operation information to the GIS system synchronously; and machine account maintenance and management of distributed power supply users are increased. The timeliness of machine account transaction is improved, the accuracy of equipment parameters is ensured, and the safety of a power grid is improved to a certain extent.