It is of great significance to study the overall status and development direction of China’s coal mine intelligent technology for enterprise technology research and development and policy formulation. Taking the patent of intelligent technology in coal mine as the research object, the LDA theme model was used to carry out research and predict the development trend from the aspects of patent measurement and technical theme. The main results show that the intelligent technology of coal mines in China is in the development stage. Patents are divided into 10 technical topics, among which “intelligent mining face” has the largest number of patent applications and continues to increase, which is a hot spot for R&D. “Disaster prevention and control” “intelligent transportation dispatching system” “intelligent video surveillance system” “intelligent centralized control system” “intelligent algorithm”patent applications are relatively large, “geological monitoring” “gas and coal dust monitoring”are growing rapidly, and the development prospects of the above technologies are good. The number of applications for “information infrastructure” is small and has not changed significantly, and the number of applications for “mining special robots” is low, and the R&D and application capabilities need to be improved urgently.

intelligent coal mine  /  LDA topic model  /  patent mining