The invention discloses a webpage data presentation method and webpage data presentation device for a browser. The device comprises a setting load module, a setting matching module, a setting acquisition module, a data extraction module and a data display module, wherein the setting load module is used for loading webpage content extraction setting; the setting matching module is used for downloading webpage content at a browser side, acquiring a data organization structure of the downloaded webpage and matching the acquired data organization structure with a recorded data organization structure; the setting acquisition module is used for acquiring webpage content extraction setting with a data organization structure matched with the downloaded webpage; the data extraction module is used for extracting the webpage data in the downloaded webpage according to a data extraction manner in the matched webpage content extraction setting; the data display module is used for loading and displaying the extracted webpage data; and, if the setting matching module does not obtain the webpage content setting matched with the data organization structure of the currently downloaded webpage through matching, the data extraction module is used for extracting the webpage data in the downloaded webpage based on the closest webpage content extracting setting.