The aim of this paper is to explore the relation between educational research and educational practice. Slavin (1990) claims that education is an applied field and the purposes of educational research are to provide information and lead the progress of educational practice. We know the inverting process from educational research to educational policy is very complex, it is not a simple linear-relation. However, the meaning and value of educational research are certain and important. At first, we must understand the knowledge basis, methods and results of educational research. Secondly, the situations of policymaker are different from those of researcher. Therefore; it is very important to discuss the essence and the context of both. Finally, Weiss (1979:31) explored the problems of social science research's utility and expressed seven models of research utilisation. They are beneficial for understanding the interlink of educational research and educational policy-making.