The invention discloses a method for preparing a microporous ceramic packing capable of removing fluorine activity with high efficiency, and relates to a method for preparing a water treatment material. The method comprises the following steps: 200 meshes of medical stone, 200 meshes of zeolite, 180 meshes of clay, and water are evenly mixed; the weight percentage of the raw materials is as follows: 30 to 35 percent of the medical stone, 50 to 55 percent of the zeolite, and 15 to 20 percent of the clay; the raw materials are extruded into particles with the size of between 1 and 3mm; the particles are roasted at a temperature of between 1,250 and 1,300 DEG C for 3 to 4 hours after being dried, and are boiled in caustic soda solution for 8 to 10 hours after being cooled down; the particlesare soaked in dilute sulfuric acid for 4 to 5 hours after being taken out, cleaned and neutralized; and then the particles are taken out, cleaned and dried. The packing has the advantages that the packing has low operating cost and a long service cycle and can be regenerated and reused through the treatments such as roasting, soda boiling, acid dipping, and the like after being used for a long time.