Abstract: If people in the disaster area can make use of the disaster-reduction marking system and escape from the disaster area in time when disasters and accidents suddenly happen, the casualty and expense will be effectively reduced. Based on the investigation of medium and large subway stations domestic and oversea, some problems hidden in the disaster-reduction marking system of a domestic subway were analyzed and the optimized advices were put forward by comparing with the oversea system. The relation between the disaster-reduction marking system and the framework of emergency preplan was briefly discussed.