Bylaw Is essential to assuring continuity and preventing disagreements and misunderstanding. But library bylaws of the wide-area self-governing cities in Korea are complicated In structure and violated the law according to administrative authorities. Therefore, the purpose of this paper is to suggest an integrated bylaw model including goal of bylaw operations of library : the library director officers : branch libraries : substructure, use rules : assigned materials promotion committee of library promotion fund ; amendment procedures, etc.