1. A system for recognizing non-body text in a webpage, comprising: at least one processor to execute a webpage grabber, a Document Object Model (DOM) tree construction unit, a DOM tree analysis unit, a text statistics unit and a text recognition unit; the webpage grabber to grab data associated with webpages of a target website; the DOM tree construction unit to construct a DOM tree corresponding to each webpage of the target website; the DOM tree analysis unit to determine a unit text section in the webpages according to the DOM tree; the text statistics unit to conduct statistics on a number of occurrences of the unit text section in the webpages of the target website; and the text recognition unit to recognize the unit text section as a non-body text when the number of occurrences is greater than a predetermined threshold.