A method for producing a three-dimensional manufactured article, the method comprising, preparing a first powder containing a ceramic as a main component, and a second powder containing a metal as a main component, wherein the metal is an elemental substance of a metal element selected from the group consisting of magnesium (Mg), aluminum (Al), titanium (Ti), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), gold (Au), silver (Ag), platinum (Pt), iridium (Ir), bismuth (Bi), niobium (Nb), molybdenum (Mo), tin (Sn), tungsten, and lead (Pb), or an alloy of the metal element and one or more other elements, and an average particle diameter D 1 of the first powder and an average particle diameter D 2 of the second powder fulfill D 1 ≤ 0.5 × D 2, wherein the average particle diameters D 1 and D 2 are particle diameters at 50% of the cumulative value (D 50) in the particle size distribution based on the laser diffraction/scattering method; granulating the first powder and the second powder; sintering the first powder and the second powder after the granulating; obtaining an additive manufacturing material by the sintering; and the steps of: supplying the additive manufacturing material to a manufacturing area; forming a layer of the supplied additive manufacturing material deposited onto the manufacturing area; applying energy for melting the additive manufacturing material to a predetermined region of the layer, and thereby binding the additive manufacturing material of the predetermined region to form a solidified layer of the additive manufacturing material; supplying fresh additive manufacturing material onto the solidified layer; and repeating the steps to, thereby obtaining a desired three-dimensional manufactured article, wherein a temperature during the sintering is adjusted to a temperature from 0.8 times the melting point of the metal in the second powder to 0.95 times the melting point of the metal in the second powder; the first powder and the second powder are bound by the sintering to form granulated sintered particles in which primary particles of the first powder and primary particles of the second powder are three-dimensionally bound through voids; and the granulated sintered particles have a granule strength of 10 MPa or more and 5000 MPa or less, wherein said granule strength is determined as described in the specification. preparing a first powder containing a ceramic as a main component, and a second powder containing a metal as a main component, wherein the metal is an elemental substance of a metal element selected from the group consisting of magnesium (Mg), aluminum (Al), titanium (Ti), chromium (Cr), manganese (Mn), iron (Fe), cobalt (Co), nickel (Ni), copper (Cu), zinc (Zn), zirconium (Zr), gold (Au), silver (Ag), platinum (Pt), iridium (Ir), bismuth (Bi), niobium (Nb), molybdenum (Mo), tin (Sn), tungsten, and lead (Pb), or an alloy of the metal element and one or more other elements, and an average particle diameter D 1 of the first powder and an average particle diameter D 2 of the second powder fulfill D 1 ≤ 0.5 × D 2, wherein the average particle diameters D 1 and D 2 are particle diameters at 50% of the cumulative value (D 50) in the particle size distribution based on the laser diffraction/scattering method; granulating the first powder and the second powder; sintering the first powder and the second powder after the granulating; obtaining an additive manufacturing material by the sintering; and the steps of: supplying the additive manufacturing material to a manufacturing area; forming a layer of the supplied additive manufacturing material deposited onto the manufacturing area; applying energy for melting the additive manufacturing material to a predetermined region of the layer, and thereby binding the additive manufacturing material of the predetermined region to form a solidified layer of the additive manufacturing material; supplying fresh additive manufacturing material onto the solidified layer; and repeating the steps to, thereby obtaining a desired three-dimensional manufactured article, wherein supplying the additive manufacturing material to a manufacturing area; forming a layer of the supplied additive manufacturing material deposited onto the manufacturing area; applying energy for melting the additive manufacturing material to a predetermined region of the layer, and thereby binding the additive manufacturing material of the predetermined region to form a solidified layer of the additive manufacturing material; supplying fresh additive manufacturing material onto the solidified layer; and repeating the steps to, thereby obtaining a desired three-dimensional manufactured article, wherein a temperature during the sintering is adjusted to a temperature from 0.8 times the melting point of the metal in the second powder to 0.95 times the melting point of the metal in the second powder; the first powder and the second powder are bound by the sintering to form granulated sintered particles in which primary particles of the first powder and primary particles of the second powder are three-dimensionally bound through voids; and the granulated sintered particles have a granule strength of 10 MPa or more and 5000 MPa or less, wherein said granule strength is determined as described in the specification.