Abstract:In October 1916,Terauchi Masatake,the former Resident-General of Korea, formed a cabinet to replace Okuma Shigenobu’s party cabinet. The Korean Trio,namely Prime Minister Terauchi Masatake, Finance Minister Kazue Shoda, and Prime Minister’s personal adviser Nishihara Kamezo, dominated the formulation and implementation of “Sen-Man economic integration policy”, advocating mutual economic aid between China and Japan to replace Okuma cabinet’s tough diplomatic route represented by “Twenty-One Demands”. The Bank of Chosen, which played an active role in promoting “Sen-Man economic integration policy” at the financial level,was trying to apply the experience of bringing Korea into the Japanese currency circle to China.