In an arrangement structure for a door wire harness, the door wire harness is arranged in a door of a vehicle body and is spanned in a space between the door and the vehicle body inside a vehicle room beyond a weather strip. The door wire harness is drawn out of a space between a door inner panel and a door trim at a door side and is fixed on the door at a wire harness drawing-out position. A door side fixing position of the door wire harness is shifted from a vehicle body side fixing position of the door wire harness in a vertical direction. A spanning section of the door wire harness between the door side fixing position and the vehicle body side fixing position is sheathed by a grommet having a flexible bellows-like tube portion and made of rubber or resin. The spanning section of the door wire harness is bent in an S-shaped configuration in a space between opposed surfaces of the door and the vehicle body when the door is closed. The door wire harness is changed from the S-shaped configuration to a straight line configuration when the door is opened.