The invention provides a data set recommendation method and a data set recommendation system. The data set recommendation method comprises the following steps of: 1) calculating facet value relevancy of facets in each data set; 2) calculating data set relevancy according to the facet value relevancy; and 3) recommending a data set having the highest data set relevancy with a given data set. By the method and the system, the shortcoming that the content of the data set is ignored in the conventional recommendation method can be overcome, so the recommendation accuracy is enhanced; furthermore,the invention is convenient to use; and the application construction efficiency of the user is improved.