Particle guide block for single particle collating unit

Provided is a particle guide block for a single particle collating unit. The particle guide block for the single particle collating unit can achieve automatic adjustment of single particle objects such as grains and drugs in the single particle collating unit. The particle guide block is provided with a guide groove which is formed by enclosure of a guide surface A, a guide surface B and a guide surface C, wherein the guide surface A and the guide surface C are completely formed by arc surfaces which are transitional gradually, and the guide surface B is composed of the front portion of an arc surface which is transitional gradually and the rear portion of a straight plane. The particle guide block can automatically and gradually revise single particle objects on different positions of each suction nozzle to the same and uniform detection and observation position in the single particle collating unit. Meanwhile, the particle guide block for the single particle collating unit has the advantages of being simple