Construction of Emergency Prevention Strategy for Torrential Rain and Flood Disaster in Large-size Hospitals Based on Hazard Vulnerability Analysis XIAO Qiqiang1, LU Chao1,2,3, WANG Xueqin1, CHEN Xianping1, WANG Zhuoyun1 (1. The Second Hospital of Anhui Medical University，Hefei，Anhui 230601，China;2.Institute of Medical, Anhui University of Science and Technology, Huainan 232001; 3.Anhui Province Engineering Laboratory of Occupational Health and Safety, Anhui University of Science and Technology, Huainan, 232001) Abstract：In order to explore the emergency prevention strategy for torrential rain and flood disaster in hospital based on Hazard Vulnerability Analysis. The Hazard Vulnerability Analysis on torrential rain and flood disaster in hospital was carried out, the main risk events in the flood control and water-logging control work of hospitals was identified based on brainstorming ideas, as well as combined with the actual operation and management in hospitals, the questionnaire for Hazard Vulnerability Analysis on torrential rain and flood in hospitals was formulated and issued to analyze the event risk value and matrix distribution. According to the risk value, The evaluation results show that the high-risk events with the possibility greater than 0.5 and the risk value ranking in the top 5 need to be paid more attention to,, namely medical power failure（30.65%）, water flowing-back buildings（30.03%）, equipment trouble（28.73%） , patients’ transport difficulties（28.42%）, insufficient oxygen supply（27.95%）. On the basis of assessment results of disaster risk, for high-risk value events, the organization department shall construct corresponding emergency prevention strategies from two aspects of pre disaster prevention and in disaster response， while for other low-risk value events, the management department shall take the lead and formulate corresponding preventive measures according to the severity of the disaster.