PURPOSE: A shield door opening and closing apparatus of an electromagnetic wave shield room is provided to shield electromagnetic wave in the electromagnetic wave shield room completely and to move a shield door stably without shaking or deviation. CONSTITUTION: A shield door opening and closing apparatus of an electromagnetic wave shield room comprises a door frame forming an entrance of the electromagnetic wave shield room, a shield door(2) which is positioned opposite the door frame to open and close the entrance of the electromagnetic wave shield room, a frame(F) which is installed in contact with the outside of the door frame, a guide(3) which induces the moving path of the door, a horizontal transfer platform(7) which moves in parallel with the door frame above the frame, and a hanger bracket(8) which moves perpendicular to the door frame above the horizontal transfer platform.
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