According to lessons learned from the Fukushima Accident, it is crucial in nuclear emergency response to organize emergency staff effectively. Furthermore, every response organization is supposed to know its responsibility exactly and keep reliable communication links to cooperate properly. However, traditional decision-making systems focus more on protection actions rather than organization management. This article introduces a new decision support system based on emergency plans, which can digitalize the nuclear emergency plans from different emergency organizations as a "rule base" in an expert system, get real-time information from the accident as an "environment variables base", and integrate the traditional consequence assesment at the same time, in order to give reasonable suggestions to the emergency staff. We have already developed a system based on above ideas, which has been used in some off-site emergency centers in China.
