The utility model relates to a grain granule heat conductivity test technical field discloses a grain granule heat conductivity testing arrangement, and it includes control box, grain container and temperature probe, be equipped with heating power supply in the control box, following wherein in the grain container, the axis direction is provided with electric heating wire, electric heating wire's both ends are fixed through dead lever / silk respectively in the grain container, electric heating wire's both ends respectively by heating silk lead wire with heating power supply in the control box links to each other, temperature probe is close to electric heating wire sets up, temperature probe pass through the temperature probe line with control box links to each other, the grain container is used for splendid attire grain granule. The utility model discloses can carry out online accurate measurement to the heat conductivity of grain granule.