In order to monitor the development of marine emerging indutries, an automatic identification and classification algorithm for enterprise in the field of marine emerging industries based on 150 million market entities were developed by text matching methods, and the enterprise data on recruitment salaries, financing, patents, bidding and other related data were tracked and analyzed since 2018. The results show that under the favorable stimulus of the strong maritime nation strategy, the overall trend of marine emerging industries is becoming more active and is improving with the continuous inflow of human, capital and technology elements. Finally, suggestions are put forward for problems of the development such as the lack of leading companies, the need to improve innovation capabilities, more financing support and the homogenization of industry development.