The under-counter freestanding dishwasher is customized for small and medium-sized catering businesses. It is placed flat on the ground without foundation trenching, featuring a compact footprint and easy installation. Equipped with multi-directional high-temperature and high-pressure spraying technology, it integrates washing and high-temperature sterilization functions. The automatic dishwashing operation replaces manual labor, saving both water and manpower, and is suitable for back-of-house applications in restaurants, fast-food outlets, small canteens, wine houses and similar catering premises.