This study examines the discourses politics in the course of policy making processthrough the theoretical principles and analytic methods of Critical Discourse Analysis byanalyzing the case of free school lunch in Seoul.The results through the research process were as follows:First, in the policy making process of free school lunch in Seoul, the discourses politicscan be seen as the combination with their politic interests. Second, the conservatives andthe progressives made full use of various behavioral strategy to justify their argumentsand in this process, discourses politics play a key role. Third, the policy decision in thepolicy making process of free school lunch in Seoul were the results of the discourse ofstruggle than the decision by policy behaviors' compromise or understanding.