Method and system for downloading data

The method is used for improving the download rate and the download quality of client side. It comprises: the client side sends a download request to the central server; the download request comprises the ID of file to be downloaded; according to the ID of file, the central server enquiries all file servers and client side where said file is saved; the central server sends the download strategy to the client side requesting the download; the download strategy includes the paths of all file servers and client sides where the said file is saved; after receiving the download strategy, the client side requesting the download starts to download the desired data.