A system for processing downloaded data is provided. The system includes a local server, a database server, an image storage server and a plurality of client computers. The database server, the image storage server and the client computers are connected to the local server. The local server is configured for downloading data from a remote server, parsing the downloaded data and replacing URL information of each image in the downloaded data to a predetermined character string, and changing the character strings to default local URLs that can display the images, when the client computers request to access the downloaded data. A related method is also provided.