An electronic device and a Subscriber Identity Module Card (SIM card) connector mounted in the same are disclosed. The SIM card connector includes a lower surface support having an open area adapted to receive a SIM card and a contact area adapted to be electrically coupled to the SIM card, an elastic support disposed near at least one side surface of the open area, the elastic support having a predetermined width and an elasticity expressed towards an upper surface support of the SIM card connector and having a shape surrounding the contact area, a side surface support having a predetermined height disposed circumferentially at distal edges of the lower surface support except for the open area, and the upper surface support coupled to the side surface support and having a top surface formed parallel to the lower surface support adapted to partially enclose an upper portion of the SIM card.