A composition for forming a conductive pattern by irradiation of electromagnetic waves, comprising: a polymer resin; a non-conductive metal compound including at least one phosphate selected from the group consisting of phosphates represented by Chemical Formulas 1 to 4 below; and a carbide, a carbon-based material, a nitride-based material, a metal oxide, or a mixture thereof as a heat-dissipating material, wherein the heat-dissipating material includes silicon carbide as the carbide; carbon black, carbon nanotube, graphite, graphene, or a mixture thereof as the carbon-based material; boron nitride, silicon nitride, aluminum nitride or a mixture thereof as the nitride-based material; or magnesium oxide, aluminum oxide, beryllium oxide, zinc oxide, or a mixture thereof as the metal oxide; wherein a metal nucleus is formable from the non-conductive metal compound by the irradiation of the electromagnetic waves: [Chemical Formula 1] A x B 2 P 3 O 12 [Chemical Formula 2] Cu 3-y M 1 y P 2 O 8 [Chemical Formula 3] Cu 2-z M 2 z P 2 O 7 [Chemical Formula 4] Cu 4 P 2 O 9 in Chemical Formula 1, x is a rational number from 0.5 to 1, A is at least one metal selected from the group consisting of Li, Na, Cu, Ag and Au, and B is at least one metal selected from the group consisting of Sn, Ti, Zn and Hf, in Chemical Formula 2, y is a rational number from 0 to less than 3, M 1 is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Y, Zn, Nb, Mo, Tc, Pd, Ag, Ta, W, Pt and Au, and in Chemical Formula 3, z is a rational number from 0 to less than 2, M 2 is at least one metal selected from the group consisting of Zn, Mg, Ca, Sr and Ba. a polymer resin; a non-conductive metal compound including at least one phosphate selected from the group consisting of phosphates represented by Chemical Formulas 1 to 4 below; and a carbide, a carbon-based material, a nitride-based material, a metal oxide, or a mixture thereof as a heat-dissipating material, wherein the heat-dissipating material includes silicon carbide as the carbide; carbon black, carbon nanotube, graphite, graphene, or a mixture thereof as the carbon-based material; boron nitride, silicon nitride, aluminum nitride or a mixture thereof as the nitride-based material; or magnesium oxide, aluminum oxide, beryllium oxide, zinc oxide, or a mixture thereof as the metal oxide; wherein a metal nucleus is formable from the non-conductive metal compound by the irradiation of the electromagnetic waves: [Chemical Formula 1] A x B 2 P 3 O 12 [Chemical Formula 2] Cu 3-y M 1 y P 2 O 8 [Chemical Formula 3] Cu 2-z M 2 z P 2 O 7 [Chemical Formula 4] Cu 4 P 2 O 9 in Chemical Formula 1, x is a rational number from 0.5 to 1, A is at least one metal selected from the group consisting of Li, Na, Cu, Ag and Au, and B is at least one metal selected from the group consisting of Sn, Ti, Zn and Hf, in Chemical Formula 2, y is a rational number from 0 to less than 3, M 1 is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Y, Zn, Nb, Mo, Tc, Pd, Ag, Ta, W, Pt and Au, and in Chemical Formula 3, z is a rational number from 0 to less than 2, M 2 is at least one metal selected from the group consisting of Zn, Mg, Ca, Sr and Ba. in Chemical Formula 1, x is a rational number from 0.5 to 1, A is at least one metal selected from the group consisting of Li, Na, Cu, Ag and Au, and B is at least one metal selected from the group consisting of Sn, Ti, Zn and Hf, in Chemical Formula 2, y is a rational number from 0 to less than 3, M 1 is at least one metal selected from the group consisting of Ti, V, Cr, Mn, Fe, Co, Ni, Y, Zn, Nb, Mo, Tc, Pd, Ag, Ta, W, Pt and Au, and in Chemical Formula 3, z is a rational number from 0 to less than 2, M 2 is at least one metal selected from the group consisting of Zn, Mg, Ca, Sr and Ba.