This paper aims to study the descriptive-analytical method of the old texture of Yazd city (Fahadan neighborhood) and Using the Geographic Information System (GIS) to build a database in the pre-earthquake phase.

The results show that in the current situation due to the new technology evolution and the necessity to meet the needs in the development of earthquake studies and prevention and mitigation of earthquake risks before or after its occurrence, the transformation of traditional scientific and technological information services. Bringing in advanced services that is in line with the progress of the information society is an inevitable necessity. All of this is nowadays associated with working on earthquake science and technology with a new tool.

Geographic Information System (GIS) is a new tool that has great capability in analyzing and processing, managing, storing and storing information.

This system has gained a lot of capability and applicability in various sciences of the earth today and is Able to create a large database of descriptive and spatial data.

Effective capability of this tool in collecting, analyzing and processing, managing, storing and storing data in descriptive (tables, etc.) and visual (drawings, photographs, etc.) superior to other methods Is more scientific and efficient. Therefore, all spatial and descriptive data related to a country, a region or a city can be integrated and stored in a single database.

The research found that this system is very efficient and up-to-date in earthquake crisis management, which requires different, yet integrated, information layers. Also this system can be a very rich source of information on the status of urban locations (eg historical contexts), before and after an earthquake, or in times of crisis.