Biological shale ceramic filter is a novel biofilm carrier packing. Using natural rock - shale as raw materials, high temperature roasting, refined, it is nontoxic, odorless, good corrosion resistance, and has excellent absorption, and good strength, pressure resistant, cut sewage capacity, shale ceramic filter has good physical, chemical and hydraulic characteristics, surface area, porosity, adsorption interception ability. Big holes on its surface, more angular, rough and easy to hang the film, and there are certain mechanical strength, is an ideal carrier microbes. Shale biological filter for all types of water purification. Attached to the growth of microorganisms is very beneficial, soilless cultivation of flowers, potted plant, bonsai cultivation, as well as the construction of energy-saving materials, it has light volume, the pressure to engage in high heat, frost, shock, no radiation and so on.