According to the philosophical paradigms, including positivism, phenomenology-hermeneutics, critical theory, and postmodernism, the relationship between educational theory and practice has four dimensions respectively: educational theory leading practice, educational practice developing theory, educational theory reflecting/modifying practice, and educational practice replacing theory. As for the rational development of the relationship between educational theory and practice, the study draws the conclusion form meta-analysis. Educational theory and practice are "inter-becoming" and the development of their relationship is dialectic. In educational situation. We can use educational theory to reflect practice, and constantly modify educational theory from practice at the same time. That will be an endless, dialectic development process.