Disclosed are a method and device for displaying page of electronic book, and a terminal device. The method for displaying page of electronic book includes: in response to receiving a page turning operation for a currently displayed image page of the electronic book, acquiring an edge color value and page content of the currently displayed image page; and drawing and displaying a folded portion with the edge color value and the page content, wherein the folded portion is a back portion of the turned currently displayed image page on which the page turning operation is performed.