Cereal grain automatic dispersing apparatus used in cereal parameter detection box

A cereal grain automatic dispersing apparatus is used in and arranged in a cereal parameter detection box. The apparatus is arranged above an imaging board and is provided, from top to bottom successively, a cereal grain inlet container, a material feeding dispersing tube, a reflection dispersing rod, a secondary dispersing frame and a uniformly dispersing frame. A material outlet of the cereal grain inlet container is arranged correspondingly to the material inlet of the material feeding dispersing tube. The material feeding dispersing tube, the secondary dispersing frame and the uniformly dispersing frame are arranged corresponding to the centers of each other. By means of the cereal grain automatic dispersing apparatus used in the cereal parameter detection box, cereal grains incoming the cereal parameter detection box can be dispersed automatically, thereby ensuring the cereal grain dispersed on the imaging board to be not stuck, to be dispersed uniformly and to be convenient to detect.