A grain pest control apparatus includes an input unit adapted to accept input of grain a heating unit adapted to heat the grain supplied from the input unit and a removal unit adapted to remove heat from the grain heated by the heating unit, wherein the removal unit includes a cylindrical body provided with an air passage hole in a wall surface and adapted to receive the heated grain and a heat collecting chamber installed by surrounding the cylindrical body and connected to an exhaust channel, and removes heat from the heated grain by causing air supplied into the cylindrical body to pass through the air passage hole and escape via the heat collecting chamber.
