The utility model belongs to the technical field of dish-washing machines, and discloses a sprayer fixing structure and a dish-washing machine. The sprayer fixing structure comprises a columnar connector and a mounting base. One end of the columnar connector is fixedly connected to the bottom of the sprayer, and a through hole is formed in the other end of the columnar connector and communicated with a drainage pipeline in the sprayer. The installation base is arranged on the side, facing the washing cavity, of the dish-washing machine inner container base, an installation groove is formed inthe installation base, a water outlet is formed in the bottom of the installation groove, and the columnar connector is inserted into the installation groove and rotates around the axis of the columnar connector in the installation groove. The dish washing machine comprises the sprayer fixing structure. According to the utility model, the columnar joint is directly inserted into the mounting seat,so that the fixed height of the sprayer is effectively reduced, and the use space of the washing cavity is relatively increased.