The invention discloses a method and device for processing browsing data, and relates to the technical field of computers. One specific embodiment of the method comprises the following steps: determining the session times of a first article and each second article appearing in the same session and the session times of each second article and each third article appearing in the same session according to user browsing data, wherein the third article comprises a first article and other second articles except the second article; screening out a target article in competitive product relationship with the first article from the second articles according to the session times; and respectively calculating a competition value of the first article and each target article so as to determine a competitive product of the first article. According to the embodiment, the technical problem that competitive products cannot be accurately found can be solved.