The invention relates to a mixer capable of improving the granulation uniformity of sintered ore. The mixer comprises a mixer shell body, a rotary shaft, a plurality of connecting handles and a stirring cutter, wherein the mixer shell body comprises a mixer upper cover, a mixer lower cover and a mixer side wall; a sealed mixer inner cavity is formed by the mixer upper cover, the mixer lower coverand the mixer side wall; the rotary shaft is located in the mixer inner cavity and is arranged along the axial direction of the mixer shell body; the setting position of the rotary shaft is located ata central shaft of the mixer shell body; one end of each connecting handle is fixedly connected with an outer side wall of the rotary shaft and the other end of each connecting handle is connected with the stirring cutter; the plurality of connecting handles are axially distributed along the rotary shaft and the vertical distance between two adjacent connecting handles is equal; in projections ofthe plurality of connecting handles in the mixer upper cover or the mixer lower cover, an included angle between two adjacent projections is alpha and the alpha is greater than or equal to 30 degreesand less than 360 degrees. The mixer provided by the invention is simple in structure and good in uniform mixing effect; the mixer can be applicable to a primary mixing process of the sintered ore and has strong applicability.