A method for providing article information includes the following steps: an article request for obtaining an article to be read is received through a network from a present client. The article is analyzed to obtain several potential keywords from the article. An internal database is searched to obtain at least one representative keyword, which the potential words belong to, and transformation information between the at least one representative keyword and each potential keyword. A number of search results of the at least one representative keyword is obtained by searching an external database for calculating a number of search results of each potential keyword. Article-related information related to the article is generated according to the number of search results of the potential keywords. The article and the article-related information are combined to generate a web page for being transmitted to the present client through the network.