E. Key is regarded as a representative of ‘pedagogy from child' and from this aspect Key's theory of education has been explored. But what Key's theory of education ultimately achieve, is to make a new and better society through the renewal of mankind, educational utopia. In this respect, this study aimed to explore the main ideas on Key's theory of educational utopia. The contents of this study are summarized as follows. From the Aspect of evolutionism, Key advocated the invention of a new and better society through the renewal of mankind, which was founded on 'the holiness of children' and 'the holiness of generation'. To achieve the educational utopia, emphasized Key the importance of the role of women, espcially the motherhood of women. In conclusion it was mentioned that Key's theory of education is defined as 'education from child', however that is a part of educational utopia program, which is to make an ideal society through new man and new education.