Abstract:Based on the construction and application practice of cloud system on the big data of land and resources in Shandong province, and the simulation experiment, the efficiency improvement of the operation system and key technologies of big data cloud of the land and resources in Shandong province have been studied in order to provide references for the government information integration. As showed by the research results, through the efficient operation system construction and the adoption of key technologies, the efficiency of cloud system in terms of rapid display, cropping, tile and data mining has been improved to varying degrees. Among them, the concurrent performance of the upper cloud system increased by 99.5% on average, and the efficiency of vector data cropping increased by 17 times., and the vector data cutting efficiency is increased by 17 times. From the aspects of functional design, data organization, hardware environment and topology, the efficient operation system of data cloud system on the land and resources big data have been designed. Data processing, heterogeneous data integration, distributed data storage, flexible construction and development and mining, massive library management have taken as key technical innovations. All these methods can greatly improve the operating efficiency of the system.