The uncertainty of international financial market was increased suddenly, since 2008 September 15th Lehman Brothers bankruptcy. In spite of the money market stabilization management of various nations, the stock market of the world was visible the features which slump and sudden rise are insecure. The reliability about dollarization was depreciated suddenly in depression of American money market, and the dollarization was converted with important currency comparison bearish trend. Relates with this, this thesis analyzed press information about the policies which the authorities confronts since global banking crisis after Lehman situation. And it provided various current points. Despite these meanings, this research has several critical points. So this thesis refers the critical points and presets research direction In future.