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Natural disasters have been threatening our life all the time. Nowadays, with the development and advancement of ICTs, we are urgently demanding the timeliness of disaster management. To achieve the goal of agile disaster management, I focus on applying edge computing in providing emergency services for affected areas. However, the existed edge computing architecture is not yet able to meet the needs of disaster scenarios. As a result, I come up with the idea of combining related technologies to enhance edge computing. First, in case that the original network falls, I propose the solution of fast networking based on Information-Centric Networking (ICN) which can swiftly connect users together. Second, after rebuilding the network topology, to extend its lifetime as long as possible, I design the energy-efficient caching strategies to optimize network resource allocation. Third, to enlarge the coverage and increase the scalability of the edge network, I choose UAVs as a solution to play the role of network nodes in-the-air and discover survivors.