The purpose of the study was to explore the high school teacher's perception on the ways of designation and operation of self-governing private high school and provide some suggestions for the rational ways of designation and operation of it. The main results showed that if the teacher's perception on the high school was a little high, it needs to be careful of the greatly not high perception. It suggests that the policy needs to be operated gradually reflecting the needs of related group. Even if there were differences by the teacher's characteristics about the ways of designation and operation of the high school, teachers indicated negative perception on the ratio of foundation transfer money, student selection methods, the raising and application of school finance, and the autonomy of curriculum operation except the size of tuition. When the results were considered, the ratio of foundation transfer money needs careful approach and it needs to focus on making the ways of selecting students that fit the establishment of the high school rather than the way of standardized selection. It needs to search the way of expanding the selection unit to national unit having invariable ratio gradually for rethinking the competition power of private school. And, it needs that the school makes decide autonomously for fitting the goal of the high school for students who need social consideration. Also, the curriculum for the high school should be made by having autonomy, professionalism, and high responsibility which means that the curriculum will provide more educational benefits with students and make high the trust of public education.