Abstract: Disclosed is a process for manufacturing high-density biostone with ceramic powder emitting a far infrared ray, comprising preparing the ceramic powder by mixing 85˜92% by weight of Al2O3, 3˜7% by weight of SiO2, 3˜7% by weight of MgO and 1˜4% by weight of clay as major ingredients and ball milling it for 48 hrs; adding 0.6% by weight of dispersants, 1% by weight of wetting agents, 0.6% by weight of glycerin, 20% by weight of binders and 0.5% by weight of anti-forming agents as minor ingredients based on 100% by weight of the ball milled mixture to 35% by weight of water of 60° C., stirring it and adding it to the ball milled mixture; and wet grinding the resulting mixture with ball mill about 24 hrs and spray drying it to obtain a ceramic powder having a diameter of about 60 to 80 meshes; introducing the mixed ceramic powder into a shape of mold and pressurizing and compression molding it with a pressure of 0.8×103 Kg/cm2 to 1.