The invention provides an electronic device which comprises a shell and a mounting seat fixed on the shell, wherein the shell is provided with an insertion hole; the mounting seat comprises a fixing part and a bearing part; the fixing part comprises a baseboard and fixing portions protruding the baseboard; the baseboard is provided with an exit corresponding to the insertion hole; the bearing part comprises a bearing portion and a matching portion formed at one end of the bearing portion; the fixing portions pass through the insertion hole; the baseboard pushes against the outer surface of the shell, and the exit corresponds to the insertion hole; the bearing part is contained in the shell; the matching portion is matched with the fixing portions to fix the bearing part on the fixing part; and the matching portion pushes against the inner surface of the shell. The electronic device has the following beneficial effects: the mounting seat is fixed on the shell through matching of the matching portion and the fixing portions, thus a chip card fixing mechanism can be installed on a fixed seat; and the chip card fixing mechanism is fixed on the shell without forming screw holes on the shell or adopting a welding method, thus the shell deformation can be effectively avoided.