Catastrophic natural disasters have frequently occurred in recent years, they have become serious threat to people's
lives and property. The rapid development of spatial information technology has been widely applied to natural
disasters, has become a powerful tool for disaster mitigation. This paper analyzes spatial information technology in
the investigation and identification, distribution and law, risk evaluation and zoning, loss assessment, forecasting and
dynamic monitoring of the application in natural disasters, hopes play a role to prevention of natural disasters