This report is the sixth-phase result of the Bank Internationalization Report series. Taking the accumulation of overseas assets, the results of overseas operations and the layout of global institutions as the core, this report focuses on global commercial banks to show the history and status quo of bank internationalization in different countries. Through the establishment of the Bank Internationalization Index (BII), the book visually depicts the level of internationalization of different banks, sorts out their internationalization achievements, explores the causes of their internationalization, and makes feasible suggestions for the international development of global banks.