A door structure for a railway vehicle for being provided in an opening portion in an end panel of the railway vehicle, the door structure comprising: a door frame having a hinge on one side portion; and a door main body that is pivotally openable and closable in a lateral direction of the railway vehicle while the hinge serves as an axis, and pivotally openable and closable in a forward direction of the railway vehicle while a lower end portion of the door frame serves as an axis, characterized in that the door main body is provided with a window; and the door structure further comprises an extension footboard portion that has one end thereof rotatably connected to an upper end of the door main body and is folded to be stored on a vehicle interior side of the door main body in a closed state of the door, the extension footboard portion being provided with an opening portion for the window, the opening portion being positioned on the vehicle interior side of the window in the closed state of the door; wherein the door main body is provided with a first footboard portion, and the extension footboard portion is provided with a second footboard portion, and in a forward full open state of the door, in which the door main body has been tilted forward and downward from the closed state of the door, and the extension footboard portion has been rotated forward from the folded state so as to be positioned forwardly of the opened door main body, the first footboard portion covers the window in the door main body while the second footboard portion covers the opening portion for the window in the extension footboard portion, the first footboard portion and the second footboard portion thereby constituting a footboard for escape in the forward full open state of the door. a door frame having a hinge on one side portion; and a door main body that is pivotally openable and closable in a lateral direction of the railway vehicle while the hinge serves as an axis, and pivotally openable and closable in a forward direction of the railway vehicle while a lower end portion of the door frame serves as an axis, characterized in that the door main body is provided with a window; and the door structure further comprises an extension footboard portion that has one end thereof rotatably connected to an upper end of the door main body and is folded to be stored on a vehicle interior side of the door main body in a closed state of the door, the extension footboard portion being provided with an opening portion for the window, the opening portion being positioned on the vehicle interior side of the window in the closed state of the door; wherein the door main body is provided with a first footboard portion, and the extension footboard portion is provided with a second footboard portion, and in a forward full open state of the door, in which the door main body has been tilted forward and downward from the closed state of the door, and the extension footboard portion has been rotated forward from the folded state so as to be positioned forwardly of the opened door main body, the first footboard portion covers the window in the door main body while the second footboard portion covers the opening portion for the window in the extension footboard portion, the first footboard portion and the second footboard portion thereby constituting a footboard for escape in the forward full open state of the door.