The invention provides a system of aggregating Website contents and a method thereof. The method comprises: (10) web page contents are received and packaged to an information source according to the interaction of users, and a nested table data model is established and Mashup script is generated, wherein, the nested table data model comprises atom attributes and examples thereof and/or tuple attributes and examples thereof; (20) the Mashup script is executed to process or aggregate the information source, and an information view graph is generated. With the system and the method adopted, massusers without any programming knowledge can extract out HTML web pages, RSS contents and the like on the Website without programming any program code and structure Mashup application which processes or aggregates the website contents.