The invention relates to an intelligent electricity use interactive business driven Web service generation method and device. The method comprises the following steps that A. after an intelligent electricity use interactive support platform has new business demands, interactive business function demand description is released; B. a peripheral system searches functions which can be released with reference to the released demands after the business function demands are released, and service OWL-S description is generated; C. the interactive business demand functions are converted into domain ontology, and service matching is performed by utilizing the domain ontology and the peripheral system service function description; D. services through successful preliminary function demand matching are notified to the peripheral system and packaged and released; E. input&output and QoS demands are put forward to each service by the platform; and F. the platform selects appropriate services for combination based on a genetic algorithm, and the successfully combined services are outputted via the platform. The method and the device are used for solving problems of seamless integration between intelligent electricity use services so that more complex value-added functions are generated to meet the interactive business demands.