The coordinated development of Beijing-Tianjin-Hebei has opened the window of financial cooperation between Beijing，Tianjin and Hebei. Beijing has abundant financial resources and the development of Hebei's financial industry is relatively backward. Tianjin is in the middle. Due to the long-term inertia of administrative barriers the current coordinated development of Beijing-Tianjin-Hebei financial coordination is in the initial stage，that the financial industry services real economy still has problems due to the development factors at home and abroad. The Beijing-Tianjin-Hebei financial cooperative servicing entity economy is in the process of exploration and development. This paper promotes financial integration and promotes financial supervision and innovation from Beijing-Tianjin-Hebei collaboration. Using financial grafting mobile Internet to promote industrial structure optimization and upgrading，to promote venture capital investment . At the end，this paper put forward specific countermeasures and suggestions for Hebei Province，Shijiazhuang City and Langfang City in order to better their respective financial capability，to coordinate the development of Beijing-Tianjin-Hebei financial cooperation in the financial open environment，by solidify the weakest part to promote the overall development.