The invention discloses a method for preparing clean gasoline through etherified C4 and naphtha aromatization. The method comprises the following steps: dewatering naphtha and removing alkalescence nitrogen and then mixing with etherified C4 after dewatering and removing methyl alcohol; heating and then entering into a reactor; putting reaction products into a light-heavy separating tank, a reaction liquid separating tank, a heavy aromatic removing tower, an absorbing analysis tower and a stabilizing tower, separating and refining, thereby obtaining the aromatized clean gasoline. According to the method, the cold feedstock is arranged. The cold feedstock is the naphtha, etherified C4 or the mixture of naphtha and etherified C4 which is not heated by a heating furnace. Only one heating furnace and one reactor are adopted according to the method; the device is compact; the energy consumption is low; the processing mode is flexible; the produced aromatized clean gasoline product is high in quality.