To provide a receiving container including a simple gastric effluent dedicated bag easily attached to the rear end of the Magen tube . A is provided with a syringe 3 with the tip of capillary 2 attached removably to the rear end portion 1c of the Magen tube 1 , the bag 4 on the outer surface of the opening 3a of the syringe 3 is covered with the opening 4a of the bag 4 the detachably fixed to the syringe 3 , the outside of the syringe 3 , is provided a hook 6 for to supporting the gastric effluent receiving container to support . [ Selection Figure Figure 2【課題】マーゲンチューブの後端部に取り付けやすい簡易な胃排出物専用の袋を含む受容容器を提供する。【解決手段】マーゲンチューブ1の後端部1cに着脱自在に取り付ける細管2を先端に有するシリンジ3を設け、当該シリンジ3の開口部3aの外側面に袋4の開口部4aを被せて袋4を着脱自在にシリンジ3に固定し、前記シリンジ3の外側に、当該胃排出物受容容器を支持物に支持させるためのフック6を設けた。【選択図】図2