The invention discloses a high-efficiency-stirring mixing device for chemical engineering. The device comprises a box body, the tops at two sides of a box body inner cavity both communicate with a liquid inlet pipe, the bottom at the right side of the box body inner cavity communicates with a liquid outlet pipe, and the centers at the two sides of the box body inner cavity are separately provided with a sliding groove. According to the invention, stirring boxes, a forward/reverse rotation electrical machine, a stirring shaft, a connection rod, fixing rods, a thread sleeve, screw threads, fixing shafts, through holes and vane wheels are arranged in the device and are used in a cooperating manner, and a plurality of chemical mixed solutions can be stirred up and down, thus stirring efficiency of the mixing device for the chemical engineering is higher, problems that when a conventional mixing device for the chemical engineering is used, the conventional mixing device for the chemical engineering can just stir a plurality of the chemical mixed solutions left and right, and cannot stir a plurality of the chemical mixed solutions up and down and left and right at the same time, so that a condition that the uniform-mixing time of a plurality of the chemical mixed solutions is relatively long, and stirring efficiency of the conventional mixing device for the chemical engineering is relatively low are solved.