The invention relates to a power marketing important index and important business monitoring system. The monitoring system comprises a monitoring data acquiring module, a monitoring data uploading module, a monitoring data displaying and processing module, a monitoring data querying module, a monitoring data checking module, a monitoring rectifying module and an analyzing and evaluating module which are in signal communication in sequence. The power marketing important index and important business monitoring system has the beneficial effects that 1, a ''gateway forward moving and giving priority to prevention'' thought is adopted, the monitoring before and during the important marketing business is highlighted, basic level business personnel are timely notified and promoted to timely handle and rectify related business, poor consequences are avoided, and the marketing management level of a power supplying enterprise is favorably improved; 2, the existing three-level monitoring mode is changed to be the two-level monitoring mode, the monitoring levels are compressed, the monitoring transmitting time is shortened, and the fast information transmission is facilitated; 3, a short message sending module is used for timely notifying, so the response speed is favorably improved.