Abstract: Massive geological information and data have formed by the long-term accumulation of geological work,which has important value.It has the characteristics of big data and belongs to the category of big data,Geological data,which has many features such as multivariate(Multi-source),heterogeneous,temporal,relevance,randomness,fuzziness and nonlinear.Integration of geological survey and information technology has promoted the development of application of big data and geological information,and geological information goes into a new era of data-driven which is based on big data analytic and big data application.This paper analyzes the current geological data technology and its applications,and proposes to integrate geological data integration,meanwhile it conducts correlation analysis,data mining and associated modeling about multi-source,multi-modal and multi-temporal state data.Finally,it implements the visualization and intelligent,based on big data.Besides,this paper also has discussed 3 elements supported by geological big data,which include geological cloud platform building,geological data application system and standardization of construction.