A fruit and vegetable washer includes a housing, an upper cover, a spin-and-turbulence unit, a power unit, a control assembly, a cleaning basket and a stabilizing shaft. A polygonal accommodating chamber is formed in the housing. The cleaning basket is cylindrical and is mounted rotatably in the accommodating chamber. Because of the polygonal cross section of the accommodating chamber of the housing and the circular cross section of the cleaning basket, the space between the accommodating chamber and the cleaning basket has a circular inner surface and a rectangular outer surface. When water fills up the space and the power unit starts to rotate the cleaning basket, the water will flow between the rectangular outer surface and the circular inner surface and keep pushing the inner surface of the accommodating chamber, producing complex turbulent flows and fully cleaning the fruits and vegetables inside the cleaning basket.
