Developing a unified code of ethics for the health education profession is the first step to build up its professionalism, because it serves as the guideline for professionals' services, sets up the standard for professionals' capability and behaviors, to protect the right and benefits of their clients, and maintain their professional image. In other words, it is to solve those practical problem during the growth of the profession in the future. This article describes in detail the development of a unified code of ethics for the health education profession in the United States, and present for comments and further development the core themes suggestion of the code of ethics for the health education profession in Taiwan, which refers to the codes of ethics for the health education profession in the United States and some related professions in Taiwan.