Abstract: Along with the city's development, the balance of geologic environment was destroyed. The work of city's geological investigation looks very importance. Find out the status of geologic environment and developmental trend is very necessary of city's modern construct. Base on the GIS technology of digital special database and computer constructive, is become the new mainstream work's mode. The text based on the 3s technology, integrated analysis the city's geological data, afford the basic video information data of geological.