The present disclosure describes an information matching method and information system. The method collects characteristic data of category plurality of categories of network behavior of a plurality of network users; groups the network users into a plurality of clusters based on the characteristic data; sets weight of the characteristic data; receives a search request from one of the plurality of network users; obtains search results according to the search request; inquires a historical record of clicking operation on at least some of the search results made by at least some of the network users in one of the clusters which contains the one of the plurality of network users; calculates a respective rank value of each of the at least some of the search results based on the historical record of clicking operation of at least some of the network users and the weight of the characteristic data; sorts of the search results to arrange the search results according to the rank values of the search results in a descending order from high rank to low rank; and causes the sorted search results to be displayed.