The invention relates to an efficient mixing device, which is characterized in that a feeding hopper is arranged at the upper part of one end of a round mixing barrel, and a discharging port is formed in the lower part of the other end of the round mixing barrel; a rotating shaft is axially arranged in the mixing barrel, and a rotating frame which axially rotates in the direction opposite to the rotating direction of the rotating shaft is arranged in the mixing barrel; the rotating shaft 7 is connected with a plurality of shaft stirring blades, and the rotating frame is connected with a plurality of frame stirring blades. The efficient mixing device provided by the invention overcomes the defects that the efficiency is low, the mixing cost is high, the mixing uniformity is difficult to meet the technical requirements and the like. The efficient mixing device provided by the invention has the advantages that the feeding, mixing and discharging are continuously carried out in the whole mixing process, the efficiency is very high, and the mixing uniformity is very good; meanwhile the operation is also completed in one time for several kinds of mixtures, and a part of or all of the blade surfaces of the shaft stirring blades and the frame stirring blades as well as the axial direction of the mixing barrel have a certain included angle to form a rotating spiral structure, so that the mixture in the mixing barrel is pushed in the direction of the discharge port while being mixed, and is discharged out of the discharging port after being fully mixed.