The present invention has a suction unit for rapidly removing water before germination of washed cereals to remove various foreign substances introduced during a threshing and peeling process, and a strong suction force is exerted under the mesh-shaped conveyor belt, It is possible to prevent the germs from being propagated and to prevent the growth of bacteria or fungi in the grains as well as to prevent the propagation of bacteria or fungi in the primary conveyor, The present invention relates to a grain drying apparatus having a sterilizing function capable of effective sterilization treatment as the grain is widely distributed in the process of being moved to the second conveyor and the grain is turned over on the secondary conveyor. According to a preferred embodiment of the present invention, a grain drying apparatus having a sterilizing function is provided with a primary conveyor on which cleaned grain is moved, and a primary conveyor which is operatively installed on the lower side of the primary conveyor, A far infrared ray irradiating part which is installed on the upper front side of the primary conveyor and blinks and on which the grains to be moved on the primary conveyer are subjected to a primary sterilization process, An ultraviolet ray irradiating unit provided on the rear side of the primary conveyor for blinking and irradiating the ultraviolet rays irradiated with the ultraviolet rays irradiated on the primary conveyor in accordance with whether they are blinking or not and being inclined to be slid down by their own weight A plurality of concavities and convexities are projected on the inclined surface in the form of cross-bars, A second conveyor connected to the lower end of the distributor and slidably lowered to feed the same to the upper portion thereof; and a second conveyor disposed below the second conveyor for moving sunlight irradiated on the second conveyor And a mixing unit for mixing the inverted grains upwardly and downwardly on the