This paper deal with the power of corporate board of directors in The Korean Commercial Act §393 (1) (hereinafter The Act). The board of directors have the legal power and duty to manage the affairs of the corporate. The Act have provided that the business and affairs of corporation shall be managed by its board of directors. The Act §393 (1) enact a resolution of the board of directors shall be required for dispositions or transfer of major assets, borrowing of large scale assets etc. The Act has adopted the system of board of directors and the representative director in enacted 1960. The power of corporate board of directors is reinforcement every an amendment. After the financial crisis in 1997 the ineffective corporate governance has been cited as the most importance reason and Korean business Group underwent tremendous change to improve their transparency of corporate affaires. As a result of a change, A role of board of directors in corporation is the managed-monitoring.