Hydrogenation method for producing catalytic reforming raw material

The invention is a hydrogenating method for producing catalytic reforming raw materials, cutting secondary processed gasoline as light gasoline fractions, medium gasoline fractions and heavy gasoline fractions, where the medium gasoline fraction and hydrogen gas together enter in first reacting region to react by the action of hydrofining catalyst, the resultant effluent is not separated but directly mixes with virgin naphtha to enter in second reacting region so as to react by the action of hydrofining catalyst, the corresponding resultant effluent is cooled and separated, where the extracted hydrogen-rich gas is recycled and the extracted liquid enters in a distilling dehydrating tower and is purified to obtain naphtha. And it can process secondary gasoline with high sulfur, nitrogen and alkene contents, and provides qualified raw material with sulfur and nitrogen contents both less than 0.5 mug/g for catalytic reforming.