A refrigerator having an ice-making device, including: a main body having a storage space; a door selectively opening or closing the storage space, the door including a pair of support steps and a seating step, the ice-making device comprising: an ice maker installed on a backside of the door and making ice; and an ice bank detachably installed on the backside of the door below the ice maker, the ice bank storing ice made in the ice maker and transferring it to a dispenser provided on the door; a seating member installed in a space, which is defined by the backside of the door, side surfaces of the pair of support steps facing each other and the seating step, the support steps being formed to protrude rearward from both side ends of the backside of the door by a predetermined length and to extend vertically, the seating step being formed to extend from side to side in such a manner that a portion of the backside of the door between the support steps protrudes rearward by a predetermined length, the seating member being provided with an installation space in which the ice maker and the ice bank are installed; and wherein a round portion is provided in a lower end of a rear side of the ice bank and causes the ice bank to be easily rotated in a direction in which an upper end of the rear side of the ice bank becomes adjacent to a front side of the installation space, wherein a catching rib is provided on the front side of the installation space and positioned adjacent to an upper end of the rear side of the ice bank. a main body having a storage space; a door selectively opening or closing the storage space, the door including a pair of support steps and a seating step, the ice-making device comprising: an ice maker installed on a backside of the door and making ice; and an ice bank detachably installed on the backside of the door below the ice maker, the ice bank storing ice made in the ice maker and transferring it to a dispenser provided on the door; a seating member installed in a space, which is defined by the backside of the door, side surfaces of the pair of support steps facing each other and the seating step, the support steps being formed to protrude rearward from both side ends of the backside of the door by a predetermined length and to extend vertically, the seating step being formed to extend from side to side in such a manner that a portion of the backside of the door between the support steps protrudes rearward by a predetermined length, the seating member being provided with an installation space in which the ice maker and the ice bank are installed; and wherein a round portion is provided in a lower end of a rear side of the ice bank and causes the ice bank to be easily rotated in a direction in which an upper end of the rear side of the ice bank becomes adjacent to a front side of the installation space, wherein a catching rib is provided on the front side of the installation space and positioned adjacent to an upper end of the rear side of the ice bank. an ice maker installed on a backside of the door and making ice; and an ice bank detachably installed on the backside of the door below the ice maker, the ice bank storing ice made in the ice maker and transferring it to a dispenser provided on the door; a seating member installed in a space, which is defined by the backside of the door, side surfaces of the pair of support steps facing each other and the seating step, the support steps being formed to protrude rearward from both side ends of the backside of the door by a predetermined length and to extend vertically, the seating step being formed to extend from side to side in such a manner that a portion of the backside of the door between the support steps protrudes rearward by a predetermined length, the seating member being provided with an installation space in which the ice maker and the ice bank are installed; and wherein a round portion is provided in a lower end of a rear side of the ice bank and causes the ice bank to be easily rotated in a direction in which an upper end of the rear side of the ice bank becomes adjacent to a front side of the installation space, wherein a catching rib is provided on the front side of the installation space and positioned adjacent to an upper end of the rear side of the ice bank.