Data has become the fundamental resource along with the emergence of new services such as cloud computing，internet of things and social network.The information retrieval is becoming more and more important with the rapid data growth.By referring to the typical search demand of scheduling management business，the technical characteristics of the information service mode are applied to the scheduling management and a design method for a uniform fusion-type search engine oriented to the integration of large power grid multilevel scheduling management is proposed.Through the retrieval of both unstructured and structural data，the integration of the heterogeneity data resources is achieved in the distributed environment.By experimental simulation and prototype system verification，the feasibility is evaluated and application projected.