The invention proposes a page content preview method, a processing method, a client, a server and a system. The page content processing method comprises the following steps: receiving a display request for page contents of a display terminal; when the page comprises a designated area, obtaining preview display data of the page contents corresponding to the designated area according to user identification information provided by the display terminal; and transmitting the display data to the display terminal. Through the scheme of the invention, rapid online preview of the pages contents in a real scene is achieved, the problem that currently the page contents provided by a page content provider cannot be previewed online in a live way is solved, the dependence on a specific information issuing channel is got rid of, and the problem that preview and live on-line inconsistent is changed, the scalability is improved and the data processing efficiency is improved.