PROBLEM TO BE SOLVED: To provide a powder and granular material carrying vessel capable of increasing an amount of stowage of powder and granular materials by reducing a dead space in the hold of the vessel.SOLUTION: A powder and granular material carrying vessel is provided for loading powder and granular materials in the hold of the vessel comparted into multiple compartments and carrying the materials. The powder and granular material carrying vessel includes: vertical transfer means; horizontal transfer means; moving means in the hold of the vessel; loading device for loading the powder and granular materials onto the hold of the vessel; air supply means for supplying air to the moving means in the hold of the vessel; water tight means operable independently of the air supply means, provided in connections between the horizontal transfer means and the moving means in the hold of the vessel, and capable of closing the connections in a water tight state; and a control device for closing the connections in t
