Although post-earthquake fire is a kind of relatively infrequent urban disaster

its potential destruction has attracted the concerns of urban disaster mitigators. In order to resist this disaster

a GIS-based software system for the simulation of urban post-earthquake fires was built by the authors for assisting mitigators in predicting the occurrence

spread

suppression and destruction of post-earthquake fires. This software system is composed of four main parts

i.e. spatial database

model library

simulation center and outputs. Spatial database provides basic data sources for simulation by collecting and organizing the spatial and no-spatial data closely related with post-earthquake fires. Model library is the core of system storing three models

i.e. ignition model

fire-spread model and fire-suppression model

which correspond to three key steps of post-earthquake fires respectively. As the operation center of system

simulation center integrates data and models to fulfill simulation of post-earthquake fires. After simulation

various statistical results are output from simulation center in form of table

map and report. These results will provide scientific supports for decision-making of disaster mitigation.