The invention relates to a tea washing device for washing tea in infusion of tea. At present, the tea, scented tea and herb tea of brewed kind are always polluted by silt, dust, pesticides, microorganism, oil stain and other impurities and peculiar smell in the processes of planting, processing, transportation and packing. As regard to the traditional tea washing procedure (warm mild infusion), the force of water filling and washing mode limits that washed tea is not clean enough due to the small teapot and the small mouth. A power unit of the tea washing device can be a manual or electric device, an extending main shaft of which is provided with agitation blades; a splash-proof cover is arranged among the body and the agitation blades and an eddy flow bar is arranged close to the periphery of the cover; and during work, the agitation blades and the eddy flow bar are soaked in liquid, the tea water is agitated by the fast rotating blades to mechanically agitate and wash the tea. The impurities attached on the tea are easy for removal. In addition, the tea washed by the tea washing device is cleaner and clearer, overall has more natural color and flavor, and is more sanitary and safer.