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 3 is provided with legs 17, a heating kettle 5 is provided with a reinforcement base 19 attached on the bottom side, a motor bed 55 is provided to support a cutter/motor unit 7 to the reinforcement base 19 or the device frame 3, load cells 24... are provided to indirectly measure a change in weight of a stirring substance in the heating kettle 5 during a rotation operation of the cutter/motor unit 7, and closed reinforced structures 69, 71 are configured to include the heating kettle 5, the cutter/motor unit 7, the reinforcement base 19, and the supporting stand 55 as reinforcing members.
