Abstract:This paper focuses on the block chain industry in China, and makes in-depth mining and analysis of the Patent data of typical institutions from the perspectives of the current development status of block chain patents, variation trend of Patent application/disclosure quantity, Patent application status of typical institutions, input-output analysis of r d team, and IPC (International Patent Classification) technology analysis, so as to grasp the development trend of block chain industry and provide reference for the development strategy formulation of relevant enterprises. The research results show that the number of block chain technology patents has increased since 2014, but the IPC relevance of patents is not outstanding. Typical institutions use their resource advantages to strengthen technical competitiveness, optimize patent layout, in order to occupy a leading position in the industry competition.