Abstract:Geological data is not only rare information resource, but also the basis for carrying out geological work. Based on big data and cloud computing technology, integration and application of geological data have been carried out. It can elaborate the best efficiency of geological information. Through systematic and comprehensive collection of all kinds of geological data, achievements, maps, related scientific research reports and geological papers of Shandong province, paper data scanning database construction has been carried out. Based on ETL tools, integration of multi-source heterogeneous geological data can be realized, and geological data and geological achievements can be collected. Study and development on the "service system of geological data" can realize the sharing of geological information. This systm is set up combining with the design idea of cloud platform, using SOA, and based on Hadoop and Spark. It can support multi-source data import of database and files, provide spatial data query, data statistics, spatial analysis, data release and other functions, and provide basic services for products of different special geological system. Geological data service system lays the foundation for the establishment of "geological cloud" in Shandong province.