The main purpose of this study is to construct the professional ethics of educational administrators. Literature pertaining to the field of professional ethics and morality of educational administrators is reviewed and synthesized in order to determine the factors which influence educational administrators' ethics. The professional ethics constructed in this study contain the following six aspects: the purposes served by the professional ethics, the nature of the professional ethics, the professional community to originate the professional ethics, the content of the professional ethics, the status of the professional ethics, the influence of the professional ethics on professional practice, the influence of the professional ethics on professional identity, and the revise of the professional ethics. Finally, this study presents five recommendations about professional ethics for educational administrators.