The invention discloses a vertical agitator, which comprises a machine base which is composed of a base and a machine head, wherein a driving mechanism, which is used for driving an agitating component, is arranged in the machine head; the driving mechanism comprises a DC (direct current) motor which is arranged in a perpendicular mode, and a planetary gear reducer; the axle of a sun gear of the planetary gear reducer is connected to an output shaft of the DC motor, and one of planet gears of the planetary gear reducer is connected to the agitating component; and the output shaft of the DC motor and the axle of the sun gear are coaxially arranged with the center of an agitating bowl which is arranged on the base when used. The vertical agitator disclosed by the invention, with the adoption of the DC motor, is low in noise, low in energy consumption and high in torque; since the DC motor is arranged in the center of the agitating bowl in a perpendicular mode and power is directly outputted to the agitating component by virtue of the planetary gear reducer, the vertical agitator is short in transmission distance and compact in structure, and the overall dimensions of a finished product are greatly diminished; and by virtue of the planetary gear reducer, the number of product parts and assembling errors are reduced, and the service life of the finished product is prolonged.