The main purpose of the study was to analyze the responses of the political parties and interest groups to 4•15 School Autonomy Plan. The research methodology of the study was the review of their comments on SAP. The major findings of the study were as follows. First, almost all of the political parties and interest groups agreed with the intents of SAP, while their responses to the specific contents of SAP were different. Second, the different responses of the political parties to these contents were not related to the political ideologies that they have pursued, while these differences of interest groups were related to these ideologies and education policy values. Third, not all guidelines that SAP planned to abolish but some of them were controversial. Fourth, the Common reasons for their objections to SAP focused on the infringement of the students' human rights, the unlimited competition among the students, the privilege for the vested interest, the equity issue, the empowerment of only the principals and the state superintendents of education, and the nature of the guidelines that SAP planned to abolish. Fifth, there were differences in their opinions about whether SAP could increase or reduce the private tutoring expenditures and normalize or destroy public education. Last, the appropriateness of the process of collecting the opinions of the educational stakeholders when SAP was made was controversial.