The invention discloses an electric stirring device and a stirring method thereof. The electric stirring device comprises a supporting part and a stirring part, wherein the supporting part comprises a base, a vertical supporting rod and a transverse supporting rod; one end of the vertical supporting rod is fixed on the base and one end of the transverse supporting rod is movably connected with the side face of the other end of the vertical supporting rod; the stirring part comprises a first chuck, a first controller, a second controller, a first motor, a second motor, a rotary shaft, a stirring shaft, a fixed shaft, a slide groove and a stirring shaft; the first motor is fixed at the other end of the transverse supporting rod; the output shaft of the first motor is connected with the upper end of the rotary shaft; the lower end of the rotary shaft is connected with the upper end of the fixed shaft; the second motor is fixed on the upper part of the slide groove by the first chuck; the output shaft of the second motor penetrates through the slide groove and is connected with the upper end of the stirring shaft; and a plurality of stirring blades are fixed on the side face of the lower end of the stirring shaft. The electric stirring device is suitable for containers with various diameters and is simple and convenient to operate.