NOVELTY - A porous nickel apatite-type lanthanum silicate metallic ceramic anode preparing method involves crushing phosphorus apatite-type lanthanum silicate nano-powder having particle size of less than 100 nm, 30-65 mass% nickel oxide nano-powder having particle size of less than 100 nm and 10-40 mass% ammonium bicarbonate as pore-forming agent to obtain mixed material. The mixed material is pressed and formed to obtain a blank. The blank is sintered in hydrogen atmosphere by controlling sintering and cooling rate to prepare multi-hole nickel/ apatite-type lanthanum silicate metallic ceramic anode.    USE - Method for preparing porous nickel apatite-type lanthanum silicate metallic ceramic anode for use as apatite type lanthanum silicate electrolyte support and preparing films on lanthanum silicate apatite-type electrolyte that is utilized in solid oxide fuel battery.    DETAILED DESCRIPTION - A porous nickel apatite-type lanthanum silicate metallic ceramic anode preparing method involves crushing phosphorus apatite-type lanthanum silicate nano-powder having particle size of less than 100 nm, 30-65 mass% nickel oxide nano-powder having particle size of less than 100 nm and 10-40 mass% ammonium bicarbonate as pore-forming agent to obtain mixed material. The mixed material is pressed and formed to obtain a blank. The blank is sintered in hydrogen atmosphere by controlling sintering and cooling rate to prepare multi-hole nickel/ apatite-type lanthanum silicate metallic ceramic anode, where the apatite-type lanthanum silicate nano-powder, nickel oxide nano-powder and ammonium bicarbonate with absolute ethyl alcohol utilized as dispersant to obtain mixture. The mixture is ball-milled and mixed for 5-10 hours to obtain ball-milled product. The ball-milled product is roasted at 55 degrees C and naturally cooled to less than 55 degrees C to obtain the mixed material. The mixed material is ground and subjected to dry pressing molding process carried out under pressure of 200-400 MPa to obtain anode blank. The anode blank is sintered at 1300-1500 degrees C for 3-5 hours, followed by controlling cooling rate of 1-2 degrees C/minute to 0-30 degrees C, heating rate of 3-5 degrees C/minute, cooling to 800-900 degrees C by controlling cooling rate of 0.5-1 degrees C/minute, controlling the temperature to more than 1100 degrees C for 10 minutes. The temperature of 800-900 degrees C is adjusted to room temperature, followed by carrying out sintering process at 99.99% hydrogen atmosphere, and reducing the temperature to 350-900 degrees C within 1-5 hours.