Tissue culture seedling quality screening device

The utility model provides a tissue culture seedling quality screening device, which belongs to the technical field of agricultural screening devices and comprises a base, a screening box is fixedly connected to the top surface of the base, and supporting legs are fixedly connected to the bottom surface of the base. And the screening assembly comprises an impurity box fixedly connected to the top face of the base, and a screening plate is slidably connected to the side wall of the impurity box and the side wall of the screening box. The screening assembly is arranged, a transmission rod and a cam rotate to drive a screening plate to vibrate, screening holes are prevented from being blocked, the screening efficiency is improved, a rotating rod rotates to drive a screening rod to rotate, the time for seeds to pass through the screening plate can be shortened through rotation of the screening rod, and meanwhile impurities on the screening plate are pushed into an impurity box through an impurity discharging open