Welding method for narrow area of ship bow

The invention discloses a welding method for a narrow area of a ship bow, and provides a segmented frame of a bow section of the ship. Meltable welding backings are welded on ribs of the segmented frame, and the welding backings are located at butt welds of outer plates of the bow section; the outer plates are assembled outside the segmented frame and the butt welds of the outer plates are welded,and the welding backings are melted and the outer plates and the ribs are connected. The meltable welding backings are pre-welded on the segmented frame before welding the outer plates of the bow section, and the welding backings are arranged to correspond to the butt welds of the outer plates, so that the heat of the welds can melt the welding backings during the butt joint of the outer plates,the outer plates are fixedly connected with the ribs of the segmented frame through the melted welding backings, welding between the outer plates and the ribs from the interior of the segmented frameis avoided, the operation d