Abstract: In 2014, Pingdingshan City experienced the most severe drought since the establish the city, the disaster caused emergence water shortage for both industry and drinking water. Baiguishan reservoir, as the only surface water resource in the urban area, supplied the dead storage to ease up the emergency water shortage situation.By reviewing the engineering safety of emergency response, the limited water level of reservoir and water quantity were determined, the corresponding operation measures for the safety of the reservoir were put forward.