A refrigerator, comprising: a main body having a storage chamber; a door arranged to open and close the storage chamber, the door comprising: a panel member provided with a display window and configured to form a front exterior of the door of the refrigerator; an inner case spaced apart from the panel member and configured to form a rear exterior of the door of the refrigerator; a deco member coupling the panel member and the inner case and having an inserting part ; a display case provided at one side of the panel member and coupled to the deco member , insulating material filled in an insulating space between the panel member and the inner case ; a display unit mounted to the display case through the inserting part ; wherein the display unit includes: a display part mounted on a printed circuit board ; a unit guide on which the printed circuit board is mounted; guide ribs formed on the unit guide ; characterized in that a plurality of mounting guides guide are provided on a rear surface of the panel member to guide a mounting location of the unit guide of the display unit, wherein the guide ribs are coupled to the mounting guides when the display unit is inserted in the display case . a main body having a storage chamber; a door arranged to open and close the storage chamber, the door comprising: a panel member provided with a display window and configured to form a front exterior of the door of the refrigerator; an inner case spaced apart from the panel member and configured to form a rear exterior of the door of the refrigerator; a deco member coupling the panel member and the inner case and having an inserting part ; a display case provided at one side of the panel member and coupled to the deco member , insulating material filled in an insulating space between the panel member and the inner case ; a display unit mounted to the display case through the inserting part ; a panel member provided with a display window and configured to form a front exterior of the door of the refrigerator; an inner case spaced apart from the panel member and configured to form a rear exterior of the door of the refrigerator; a deco member coupling the panel member and the inner case and having an inserting part ; a display case provided at one side of the panel member and coupled to the deco member , insulating material filled in an insulating space between the panel member and the inner case ; a display unit mounted to the display case through the inserting part ; wherein the display unit includes: a display part mounted on a printed circuit board ; a unit guide on which the printed circuit board is mounted; guide ribs formed on the unit guide ; characterized in that a plurality of mounting guides guide are provided on a rear surface of the panel member to guide a mounting location of the unit guide of the display unit, a display part mounted on a printed circuit board ; a unit guide on which the printed circuit board is mounted; guide ribs formed on the unit guide ; characterized in that a plurality of mounting guides guide are provided on a rear surface of the panel member to guide a mounting location of the unit guide of the display unit, wherein the guide ribs are coupled to the mounting guides when the display unit is inserted in the display case . <EOS>