PURPOSE: A grain tank for a combine is provided, which can reduce impact caused by collision of grains and a grain tank and can prevent the grains from being damaged. CONSTITUTION: A grain tank for a combine comprises a tank body(62) which has an input hole(6a) and in which grains are stored; and a buffering unit which prevents grains poured into the input hole from being damaged due to collision with the inner surface of the tank body. The buffering unit includes absorbing sheets(64) which are applied on the inner surface of the tank body. The absorbing sheet is applied in the part facing the input hole and the neighboring region.
