In a sheet manufacturing apparatus which includes an installation unit on which a container that stores a powder is installed and which manufactures sheets including the powder and fibers, the installation unit includes an inlet for receiving the powder from the container, and a first shutter for opening and closing the inlet, the first shutter is capable of moving between an open position at which the inlet is opened and a closed position at which the inlet is closed in accordance with attachment and detachment of the container with respect to the installation unit, and the first shutter is provided with a plurality of shutter members and, at the open position, the plurality of shutter members are stored overlapping one another.