A heat transport structure comprising: a first thermally conductive material in which through holes are formed, wherein the first thermally conductive material contains graphite; and second thermally conductive materials which are fitted in the respective through holes, a thermal conductivity which the first thermally conductive material exhibits in a surface direction of the first thermally conductive material being higher than a thermal conductivity which the first thermally conductive material exhibits in a perpendicular direction of the first thermally conductive material, the perpendicular direction being a direction perpendicular to the surface direction, each of the through holes being formed so as to penetrate the first thermally conductive material in the perpendicular direction of the first thermally conductive material, each of the second thermally conductive materials having a shape of a column having a bulged side surface, a thermal conductivity which each of the second thermally conductive materials exhibits in the perpendicular direction of the first thermally conductive material being higher than the thermal conductivity which the first thermally conductive material exhibits in the perpendicular direction of the first thermally conductive material a plurality of fixing parts in which the second thermally conductive materials are held; and a heat transfer part which is located between the plurality of fixing parts, a thickness of the ansfer part is not less than 100 μm, characterized in that heat transfer efficiency (λ2/λ1) is not less than 0.60, the heat transfer efficiency (λ2/λ1) being calculated from (i) a thermal conductivity (λ1) which the heat transfer part exhibits in the surface direction and which is derived with use of a light alternating-current method and (ii) a thermal conductivity (λ2) which the heat transfer part exhibits in the surface direction and which is derived from temperatures of the heat transfer part which temperatures are measured in a case where heat is inputted in one of the plurality of fixing parts. a first thermally conductive material in which through holes are formed, wherein the first thermally conductive material contains graphite; and second thermally conductive materials which are fitted in the respective through holes, a thermal conductivity which the first thermally conductive material exhibits in a surface direction of the first thermally conductive material being higher than a thermal conductivity which the first thermally conductive material exhibits in a perpendicular direction of the first thermally conductive material, the perpendicular direction being a direction perpendicular to the surface direction, each of the through holes being formed so as to penetrate the first thermally conductive material in the perpendicular direction of the first thermally conductive material, each of the second thermally conductive materials having a shape of a column having a bulged side surface, a thermal conductivity which each of the second thermally conductive materials exhibits in the perpendicular direction of the first thermally conductive material being higher than the thermal conductivity which the first thermally conductive material exhibits in the perpendicular direction of the first thermally conductive material a plurality of fixing parts in which the second thermally conductive materials are held; and a heat transfer part which is located between the plurality of fixing parts, a thickness of the ansfer part is not less than 100 μm, characterized in that heat transfer efficiency (λ2/λ1) is not less than 0.60, the heat transfer efficiency (λ2/λ1) being calculated from (i) a thermal conductivity (λ1) which the heat transfer part exhibits in the surface direction and which is derived with use of a light alternating-current method and (ii) a thermal conductivity (λ2) which the heat transfer part exhibits in the surface direction and which is derived from temperatures of the heat transfer part which temperatures are measured in a case where heat is inputted in one of the plurality of fixing parts.