A clamshell structure for an electronic device includes a window-type frame, a cover plate and a pivot. The window-type frame has an opening, and includes a first pivoting portion and a first fixing member. The first pivoting portion is near the opening. The first fixing member is disposed on a cover fixing area of the window-type frame. The cover plate includes a clamshell body, a second pivoting portion and a second fixing member. The clamshell body is used to cover the opening. The second pivoting portion is disposed on the opening. The second fixing member is disposed on an open side of the clamshell body. The pivot is pivoted through the first pivoting portion and the second pivoting portion. When the clamshell is opened, an electronic component is mounted into or dismounted from the opening for assembling or disassembling.