The invention relates to a method for producing nanometer silicone by adopting rice hull. The method for producing the nanometer silicone by adopting the rice hull comprises the following steps: carrying out heat treatment on the rice hull, so that silicon dioxide is obtained; carrying out reduction reaction on the silicon dioxide and magnesium, so that an intermediate containing the nanometer silicone, magnesium silicide, silicon dioxide and magnesium oxide is obtained; treating the intermediate with hydrochloric acid, separating filtrate containing magnesium silicate and magnesium oxide, and treating with hydrofluoric acid, filtering to remove filtrate containing silicon dioxide; rinsing products of the previous step to be neutral, and drying, so that the nanometer silicone is obtained. By applying the method for producing the nanometer silicone by adopting the rice hull, the nanometer silicone can be produced by adopting the rice hull, the rice hull can be changed into things of value, pollution to the environment when the rice hull is incinerated is reduced, production cost of the nanometer silicone is reduced, and considerable social benefit and economic benefit can be obtained; the obtained nanometer silicon material has porous structures and strong physical properties and can be applied to the fields of medicines, electronics and environmental protection.