The Internet GIS provides an open and normative environment for people to share the geographic information

the common resource of Human Kind. In particular

from 1998 the project of Digital Earth has been progressed forward. It is no doubt that the image of RS will play an important role in the progress of building the Digital Earth. But now there is a big gap between the bandwidth and the size of image

which has affected the application of RS image greatly. Therefore

in 1997 the International Standard Organization associated with Joint Photographic Experts Group began to set up a new coding system of still image-JPEG2000

which will solve this problem perfectly. This paper presents the archtecture of Web Gis application based on JPEG2000.