Fruit shell filter with the carya shell is raw material, after stave, the wind turns on lathe, polishing, to steam washes, processings and so on screening to become, the outward appearance gloss, assumes brown. This filters the material tenacity to be big, wear-resisting resistant to compression, adsorptive capacity strong, the anti-oil bath, does not agglomerate, is not rotten, is profession and so on oil field, smelting, environmental protection chemical industry widespread choices. The oiliness husk filters the material to select material from the thick carya shell, the pellet semblance assumes the tan, is not rotten, does not have the spot, toughness to be big, wearability. Mainly applies in the highly automatic control irrigation filter, the sewage filter, enters aspects and so on well filter. Is the oil field, the refinery, the petrochemical project and other environmental protection project water-oil separation necessary water purification material.