To provide a line handle and its attachment method which can be placed regardless of the thickness of a door and prevent the door from flooding.

The line handle and its attachment method are characterized by preparing a handle body to put the fingers on, a posterior wall fixed part which is fixed on the back surface of the door, and an upper end attaching part which is shorter in length than the upper end surface of the door to be attached, and by preparing a waterproof means to prevent water from flowing in.