In this study, the crisis management performance of the Turkish Education System and School Administration in the case of the COVID-19 Pandemic was evaluated by considering the importance of post-crisis evaluation and research gap. For this purpose, qualitative (N=17) and quantitative (N=444) data of the experiences and opinions of school administrators working in formal compulsory schools selected by purposeful, random and available sampling techniques from different provinces representing first-level statistical regions were evaluated. Crisis management performance evaluation criteria, which were created by a literature review, were utilized in the evaluation. Semi-structured interviews and questionnaires were used to collect data. We implemented both content analysis and descriptive statistics in line with the mixed method exploratory sequential research design. We first carried out the content analysis then, we investigated the prevalence of the matter by surveying. At the last phase of the analysis, we synthesized the qualitative and quantitative results. At the end of the study, it was observed that the crisis management practices of the Turkish Education System were not based on a long-term foresight, no preliminary preparation was made, and the problems in performing the basic functions during the crisis could not be completely resolved. For this reason, it has been concluded that the performance of the Turkish Education System and school administrations in managing the crisis is low.