A recommendation search method is provided for a search engine. The method includes recording a search log and a click log for query terms during search processes, and determining weights of tendencies of vertical searches for the query terms based on the recorded search log and click log. The method also includes, upon detecting a query term in a search box, determining recommended query terms relating to the query term in the search box, searching for the weights of tendencies of the vertical searches for each of the recommended query terms and determining a tendentious vertical search type for each of the recommended query terms based on the weights of tendencies of the vertical searches, and displaying each of the recommended query terms and links of the tendentious vertical search types for the recommended query terms. Further, the method includes, upon detecting a click on a link of one of the tendentious vertical search types corresponding to one of the recommended query terms, performing a search based on the one of the recommended query terms by using a vertical search engine corresponding to the one of the tendentious vertical search type, and displaying search results.