[Summary] [Object] There is provided a granular substance distribution device that is adapted to granular substances having various sizes and shapes and is capable of achieving high speed and highly accurate distribution of both a single granular substance at a time and plural granular substances at a time. [Organization] There are included: a rotation mechanism rotating a drive shaft； a supply-side frame body； a distribution plate provided with holders each holding a granular substance or a predetermined amount of granular substances supplied to the inside of the supply-side frame body therein in an outer circumferential portion thereof； a discharge plate provided with recessed portions each holding the granular substance or granular substances therein in an outer circumferential portion thereof in a manner to correspond to positions of the holders； a delivery plate disposed between the distribution plate and the discharge plate and having a delivery hole through which the granular substances are delivered from the distribution plate to the discharge plate formed in an upper portion thereof； and a discharge-side frame body covering the outer circumference of the discharge plate and provided with a discharge port through which the granular substance or granular substances held in each of the recessed portions is or are discharged in a lower end portion thereof, and the distribution plate and the discharge plate both rotate in the same direction and at the same speed about the drive shaft.
