The invention discloses an inquiring method of information flows of a social network site. According to the method, the piece number a in one page of display data is set in advance in a database server, then, the inquiry is carried out in a database in accordance with a+1 pieces according to given conditions, inquiry results are obtained, then, the piece number of inquiry results is utilized for judging whether a next page exists or not, the inquiry results are finally displayed, and the times for inquiring the database is reduced. The inquiry that the piece number of once inquiry is one more than the piece number of one page of display data is carried out in the database server, then, the comparison of the inquiry results to the piece number of one page of display data is utilized for judging whether the next page exists or not, and the times for inquiring the database is reduced. By aiming at many inquiring times of the social network site, when the inquiring method is utilized, 40 percent of load of the database server during information flow paging can be reduced, and 30 percent of response time is reduced.