The invention provides an intelligent electricity consumption service method based on the UC technology. The method comprises the following steps: step 1, step 2 is executed when a cell intelligent electricity consumption service terminal receives a query command and step 3 is executed when the cell intelligent electricity consumption service terminal receives an operation command; step 2, the cell intelligent electricity consumption service terminal accesses an electricity consumption marketing database, a backstage server returns query data, and the cell intelligent electricity consumption service terminal displays the query data to a user; step 3, the cell intelligent electricity consumption service terminal completes the operation command of the user, displays an operation result to the user and sends updated data information to the backstage database; step 4, the backstage server receives the updated data information and sends a power grid promotion message or household electricity consumption information to the user from the electricity consumption marketing database; and step 5, an intelligent mobile terminal receives the information sent by the backstage server. According to the intelligent electricity consumption service method provided by the invention, users can have the new experiences of active display of historical electricity consumption data, active reminding for insufficient electricity balance, power purchase business handling, timely fault reporting and the like through the mobile terminal.