The purpose of this study is to examine closely the flow process of science education phenomena for the political direction and improvement of science education. Therefore the science education system is analyzed in a view of the legislative system. The results are as follows: 1. The science education system is divided into the plan system, do system and see system by the criteria of plan do see that is the general process of human activity and the area is established as the field of science education administration, school science education, and science education evaluation. 2. The system model that the system characteristics and interrelationship between the systems are conceivable is suggested as the conceptions of boundary, components, variables, parameters, linkage and mishap, gatekeeper etc.