This article reviews Albert and Whetten (1985) which was the start of research of organizational identity in business administration. The general images of identity had been a) only one, b) unique, and c) unchangeable. In contrast, Albert and Whetten (1985) argued that organizational identity are a′) stated and single-or-multiple, b′) compatible and self-classified, and c′) changeable, which they expanded the previous interpretation of identity and made it applicable more broadly. However, the following researches cited the three criteria of organizational identity in Albert and Whetten (1985) with three simple words as central, distinctive and enduring, which made the original meanings of what it referred to dragged into vague words. Indeed, there are some researches which misunderstand Albert and Whetten (1985) such as Ashforth and Mael (1989). In order to make sure what the three criteria of organizational identity are this paper explains each criterion of organizational identity using the examples from Albert and Whetten (1985).