The invention relates to a nasogastric tube feeder, comprising: a feeding joint and a nasogastric tube. The feeding joint is connected with one end of the nasogastric tube. The feeding joint extends with a plug cap. The plug cap is provided with a magnet for feeding. There is a channel inside the joint. The channel is provided with a ring-shaped closed rib. The center of the ring-shaped closed rib forms a communication hole smaller than the channel. In addition, a bead for magnetic attraction is installed in the channel. Normally, the communication hole in the center of the ring-shaped closed rib is closed by gravity, and the bead is attached to the outer wall of the feeding joint to attract the bead when in use, so that the bead is attracted and placed by the magnetic force of the magnet. The communication hole in the center of the accommodating space is separated from the center of the annular closed rib, so that the communication hole is kept in a conductive state.本發明一種鼻胃管餵食器，包含：一餵食接頭及一鼻胃管，該餵食接頭與該鼻胃管一端組接，餵食接頭延伸設有一塞蓋，該塞蓋上設有一磁鐵，該餵食接頭內部設有一通道，該通道上設有一環狀封閉凸肋，該環狀封閉凸肋中央形成一小於通道之連通孔，另該通道內裝設有一可供磁吸之珠體，該珠體常態下藉由重力封閉該環狀封閉凸肋中央之連通孔，使用時利用該塞蓋之磁鐵貼置於該餵食接頭外側壁吸引該珠體，使該珠體被該磁鐵的磁力吸引貼置於該容置空間之壁面而脫離環狀封閉凸肋中央之連通孔，讓該連通孔保持導通狀態。
