The invention discloses a method for detecting a garbage blog. The method is designed as follows: through analyzing a cheating technology of network garbage, the method aims at an essential attribute of the garbage blog, adopts a technology of text classification in binary classification and surrounds three angles of the content characteristic of a blog text, the link character of a blog page and the time distribution character of the blog text, The method is built on the basis of the comprehensive analysis of the content of a blog webpage and carries out optimization on the operation of character extraction of the blog, thereby ensuring the higher accuracy rate of classifying the garbage blog.