Bacillus thuringiensis wettable powder and preparation method thereof

The invention discloses bacillus thuringiensis wettable powder and a preparation method thereof.The bacillus thuringiensis wettable powder comprises a mixing barrel and a supporting frame installed on the outer side of the mixing barrel through bolts, a mixing mechanism is arranged in the mixing barrel, and a first stirring motor drives a rigid filter screen and a rigid stirring paddle to rotate through a transmission shaft; the rigid stirring paddle is driven to rotate, flow guiding action is conducted on mixed liquid under the limiting effect of the flow stirring barrel, solid materials in the mixed liquid can be intercepted through the rigid filter screen, the solid materials can enter the position between the grinding block and the annular grinding block under the flushing effect of the mixed liquid, the smashing effect on the bacillus thuringiensis solid materials can be improved, and the service life of the bacillus thuringiensis solid materials is prolonged. The detection mechanism is arranged on the r