The embodiment of the invention discloses a webpage preloading method and device. The webpage preloading method includes the steps that webpage preloading is carried out according to a current preloading strategy, wherein the preloading strategy relates to the aspects of a preloading time range, preloading areas, preloading webpage depths and available spaces for preloading; statistics of historical data is carried out within a preset time period, wherein the historical data comprise information of an accessed webpage, information of a preloaded webpage and information of local cache states; according to the historical data, the preloading strategy is updated. According to the webpage preloading method, the preloading strategy can be automatically updated through the statistics of the preloaded historical data within the preset time period according to changes of the historical data, so the preloading strategy can adapt to web and user access conditions in real time, and hit accuracy rate of preloading is improved.