Based on the lightning activity characteristics of Qingdao, as well as comprehensive lightning monitoring and warning technology, the Nanjing University of Information Science & Technology and the Qingdao Meteorological Bureau developed cooperatively a lightning monitoring and warning system (NUISTLMWS). The functions of the system include the realtime monitoring and the 0 to 1 hour lightning warning, as well as the management of historical data. During the 2008 Beijing Olympic Games, in the Qingdao sailing venue, NUISTLMWS was put to use experimentally and provided useful service information for meteorological support. The warning results of three thunderstorms are analyzed, and the results show that this system performed satisfactorily in the 0 to 1 hour lightning warning.