Provided is a stirring device that allows a weight measurement during a rotation operation to be accurately performed while suppressing increase in reinforcement structures required for support of a stirring container and suppressing increase in weight. A device frame is provided with legs, a heating kettle is provided with a reinforcement base attached on the bottom side, a motor bed is provided to support a cutter/motor unit to the reinforcement base or the device frame, load cells are provided to indirectly measure a change in weight of a stirring substance in the heating kettle during a rotation operation of the cutter/motor unit, and closed reinforced structures are configured to include the heating kettle, the cutter/motor unit, the reinforcement base, and the supporting stand as reinforcing members.
