The finance in the financial information service is corresponding to the generalized extensive financial concept. According to different standards，the financial information is divided into several types and so is financial information service，which contributes to 11 kinds of different commercial modes such as financial news media，financial information portal and so on. The industry ecosystem of financial information service is constituted of complex symbiotic collaboration between enterprises across different industries，different scales and different business models，which reflects the role of technology innovation in its evolution and policy implications. Based on the composition of the financial information service industry chain，the financial information service industry can be reclassified according to the classification of national economic industry or the statistical products.