A dishwasher comprising: a main body; a tub provided inside the main body to form a washing space; a door configured to open and close the tub, and including an inner door located inside the tub while the tub is closed by the door; a sealing member provided at a lower end of the inner door, and configured to prevent leakage from occurring between a bottom plate of the tub and the inner door; and a cover member coupled with or located at the lower end of the inner door and to cover a gap between the lower end of the inner door and the tub, wherein the lower end of the inner door comprises: a side panel formed to face a side surface of the tub; a first flange formed to face the bottom plate of the tub; and a second flange formed to extend upward from the first flange when the door is closed, and the cover member is coupleable to the side panel, wherein the sealing member comprises: a first sealing portion coupleable to the second flange; and a second sealing portion formed to be bent upward from the first sealing portion when the door is closed, and to seal a gap between the bottom plate of the tub and the second flange, and characterised in that the cover member comprises: a body portion to be positioned between the first flange and the second flange; a first cover portion to be connected to the body portion, formed to extend upward, and coupleable to the side panel; and a second cover portion to be connected to one side of the body portion, coupleable to the first flange, and positioned between the bottom plate of the tub and the first flange. a main body; a tub provided inside the main body to form a washing space; a door configured to open and close the tub, and including an inner door located inside the tub while the tub is closed by the door; a sealing member provided at a lower end of the inner door, and configured to prevent leakage from occurring between a bottom plate of the tub and the inner door; and a cover member coupled with or located at the lower end of the inner door and to cover a gap between the lower end of the inner door and the tub, wherein the lower end of the inner door comprises: a side panel formed to face a side surface of the tub; a first flange formed to face the bottom plate of the tub; and a second flange formed to extend upward from the first flange when the door is closed, and the cover member is coupleable to the side panel, wherein the sealing member comprises: a first sealing portion coupleable to the second flange; and a second sealing portion formed to be bent upward from the first sealing portion when the door is closed, and to seal a gap between the bottom plate of the tub and the second flange, and characterised in that the cover member comprises: a body portion to be positioned between the first flange and the second flange; a first cover portion to be connected to the body portion, formed to extend upward, and coupleable to the side panel; and a second cover portion to be connected to one side of the body portion, coupleable to the first flange, and positioned between the bottom plate of the tub and the first flange. a side panel formed to face a side surface of the tub; a first flange formed to face the bottom plate of the tub; and a second flange formed to extend upward from the first flange when the door is closed, and the cover member is coupleable to the side panel, wherein the sealing member comprises: a first sealing portion coupleable to the second flange; and a second sealing portion formed to be bent upward from the first sealing portion when the door is closed, and to seal a gap between the bottom plate of the tub and the second flange, and characterised in that the cover member comprises: a body portion to be positioned between the first flange and the second flange; a first cover portion to be connected to the body portion, formed to extend upward, and coupleable to the side panel; and a second cover portion to be connected to one side of the body portion, coupleable to the first flange, and positioned between the bottom plate of the tub and the first flange. a first sealing portion coupleable to the second flange; and a second sealing portion formed to be bent upward from the first sealing portion when the door is closed, and to seal a gap between the bottom plate of the tub and the second flange, and characterised in that the cover member comprises: a body portion to be positioned between the first flange and the second flange; a first cover portion to be connected to the body portion, formed to extend upward, and coupleable to the side panel; and a second cover portion to be connected to one side of the body portion, coupleable to the first flange, and positioned between the bottom plate of the tub and the first flange. a body portion to be positioned between the first flange and the second flange; a first cover portion to be connected to the body portion, formed to extend upward, and coupleable to the side panel; and a second cover portion to be connected to one side of the body portion, coupleable to the first flange, and positioned between the bottom plate of the tub and the first flange.