The main purpose of this paper is to examine F.W.Parker's theory of moral education from the viewpoint of basic theory, content theory, and methodology. In the basic theory, Parker says that all education is, in itself, intrinsically moral. Secondly, education consists wholly and entirely in the cultivation of the altruistic motive. Thirdly, in Parker, separation of intellectual and moral power in education is not permitted. Regarding content theory, I discussed the morality of history, civics, drawing and nature study. And the position that the special teaching is not necessary was the fundamental attitude of Parker. Regarding methodology, Parker emphasized the introduction of the direct method, kindergarten method and work. Parker's theory of moral education was special attention taken in the United States in the latter half of 19th century.