The invention relates to the field of network communication, and in particular to a page adaptation method and device. The method comprises the following steps of: obtaining a width of a display interface; calculating a corresponding size of a root element in a page when the root element is displayed on the display interface according to the width of the display interface and a pre-defined calculation manner, wherein the calculation manner is carrying out calculation according to a width of a preset original effect picture corresponding to the page, a preset conversion relationship and the width of the display interface, and the conversion relationship expresses proportion conversion between units of elements in the page and units of elements in the original effect picture; and displayingthe page on the display interface according to the size corresponding to the root element in the page when the root element is displayed on the display interface. According to the method and device, the elements in the page are uniform units, so that a simple conversion relationship is established more simply, all the terminals can be adapted through once development design, and during page display, the original effect picture can be accurately restored, so that the labor cost is reduced, the development period is decreased and the later-period maintenance is simpler and more convenient.