The invention provides a method and a device for providing data search. The method comprises the following steps: extracting key words from page content data and page recommend data to form key word set; ranking the key words in the key word set according to relevancy; extracting key words with set number starting from the key word with the highest relevancy in the rank; displaying the extracted key words in the page. The scheme of the invention can provide key words used for data search according to the page content data and the page recommend data, so as to increase the variety of relevancy search.