This is a critical study on the information-offer-function of Korean public library among its several functions. This is not only reviewed about idealogical logical background of formulation of public library in Korea, but also reviewed about changing process o the goal of public library till the development of actual concept of modern public library. This study suggested a proper definition about actual goal of public library in Korea at present. Technocrats say the public library in the future should be both bookless and paperless library. That may mean over-interpretation on information-offer-function of public library among its several functions. When we meet information super highway era, we must not confront information dependence to advanced information countries. Thus, I suggest a way to solve the establishment of information sovereignty through public library in order to avoid the information dependence to advanced information countries.