The invention provides a method and a device for clustering high-frequency keywords in webpages and relates to the field of internet. The method includes: capturing a plurality of webpage documents corresponding to a plurality of webpages; segmenting words of each webpage document captured so as to acquire multiple terms; determining keyword combinations corresponding to the webpage documents; acquiring high-frequency keywords from the keyword combinations and clustering the high-frequency keywords so as to acquire the high-frequency keywords of the same kind according to similarity, wherein the keyword combinations include keywords indicating content of the corresponding webpage documents, and the high-frequency keywords in the keyword combinations are keywords meeting preset conditions within a preset time period. By clustering, webpage documents with relevance are classified into the same kind, and accordingly, users can more conveniently read the webpage documents of the same kind, information search of users is simplified and users' time is saved.