To creation of the competitive power have an effect on the competitive mind, the practical experience, know-how based knowledge share, and an organizing culture. Here gets accomplished a cognition and the way of thinking conversion about the importance of knowledge information management. This study aims to grope a role of bank and an improved plan to what one of knowledge information management in the bank. The research and analysis consist of knowledge information share and the influence on knowledge information management and a variety of cognition level in the case of Korea.