[Problem] To provide a heat dissipating structure having a high heat dissipation efficiency and a novel constitution. [Means for solving the problem] The heat dissipating structure comprises: a heat source and a heat dissipating part disposed opposite to each other; a concave portion formed on at least either of the mutually opposed surfaces of the heat source and the heat dissipating part; and a thermal conducting component comprising a filler layer of thermoplastic material that is disposed between the heat source and the heat dissipating part and is in contact with the mutually opposed surfaces of the heat source and the heat dissipating part, and an assembly of carbon nanotubes that are distributed in the thermoplastic material, oriented perpendicularly to the surfaces of the filler layer, in contact, at both end faces, with the mutually opposed surfaces of the heat source and the heat dissipating part, and restrained by the forementioned concave portion so that their distribution is limited in the mutually opposed surfaces.