The present document discloses a method and system for realizing content download, including: after a portal site receives a request for triggering download, generating a pseudo uniform resource locator (URL) for a content to be downloaded, establishing corresponding relationship information of the pseudo URL and a real URL of the content, and sending the pseudo URL of the content to a terminal which wants to download the content; the terminal which wants to download the content triggering the download to a download engine according to the pseudo URL; and the download engine inquiring the corresponding relationship information of the pseudo URL and the real URL of the content according to the pseudo URL, acquiring the real URL of the content, and downloading the content to the terminal which wants to download the content according to the acquired real URL.