The research, which was started in 2013 focuses on the decision-making process after vis-mayor situations (Dobó, 2013). Disaster Management in Hungary is a less known and researched area. However, over the last years natural problems had great impact on the decision making process of the local government (Csefkó, 1997). The disasters transformed the processes that had been working so far. The examination of the changed decisions became very important. Researches were carried out by the Disaster Management Department of National University of Public Service. One of the most important projects is the Critical infrastructure protection that could provide practical knowledge about the topic. The decision-making process after the crisis had not been analysed in previous studies. This research can be divided into several parts. First, there is exploration of the theoretical frameworks, laws and regulations. The decisions of the local government and the disaster management process can be presented by becoming familiar with the previous disasters. The most important stage will be the examination of the post-disaster period when the roles and the transformation of the players can be demonstrated. The methodology is complex. In the first phase, after consideration of the literature, the focus is on the changes of the law. The second stage contains media monitoring, document and map examination as well as interviews with the actors. In the third stage, the observation comes as a new method to the second phase: cooperative decision making process, crisis communication replacement, social reconciliation. The topic at any time is up to date due to the fact that while the preparedness for a crisis has become more urgent, the prediction of vis-mayor situations and consequently, the preparation is almost impossible. In this context, the decision-making process of 15 municipalities, which are now live every day of their flood, pour of the river-wall or red mud disaster and after the storm, was examined. The creation of a theoretical framework and their presentation on conferences happened so far. Processing the methodology and case studies of the disaster management are currently going on. The presentation of the achievement is expected in the autumn period.