Abstract: Management and application of geological big data is an important part of China national big data strategy.With the implementation of national big data strategy, geological big data management becomes more and more critical.At present, there are still a lot of technology barriers as well as cognition chaos in many aspects of geological big data management and application, such as data sharing, intellectual property protection and application technology.Therefore, it’s a key task to make better use of new technologies like blockchain for deeper delving and wider application of geological big data.In this paper, we briefly introduce the basic principle of blockchain technology at the beginning, and then make an analysis of the application dilemma of geological data.Based on the current analysis, we bring forward some feasible pattern, scenarios and key technologies for the blockchain application in the intellectual property protection of geological big data and put forward serval suggestions for the future work in blockchain application of geological big data.