The utility model relates to a washing filter. Water obtained by subjecting tap water to the washing filter has an oil stain decomposing function and chlorine content in water can be reduced. The washing filter comprises a filter body, an upper cover and filtering media, wherein the upper cover and the filter body are connected into a whole, and the filtering media are arranged in a space between the filter body and the upper cover. The filtering media are ceramsite filtering media including at least one type of ceramsites mainly made of a natural mineral, and the natural mineral can be organic germanium, tourmaline or medical stones. The two types of ceramsites can be organic germanium ceramsites and tourmaline ceramsites, organic germanium ceramsites and medical stone ceramsites, or tourmaline ceramsites and medical stone ceramsites. The ceramsite filtering media include three types of ceramsites, namely organic germanium ceramsites, tourmaline ceramsites and medical stone ceramsites. The ceramsite filtering media are distributed in the space between the filter body and the upper cover layer by layer and include an organic germanium ceramsite layer, a tourmaline ceramsite layer and a medical stone ceramsite layer from top to bottom.