Nanocarbon composite material and method for manufacturing same

A method for manufacturing a nanocarbon composite material, the method comprising:

• setting an inert gas atmosphere, a nitrogen gas atmosphere, or a mixture atmosphere in a chamber in which a catalyst-containing carbon target is placed;
• evaporating the catalyst-containing carbon target by laser ablation while rotating the catalyst-containing carbon target;
• controlling a gas flow rate to be constant in a process of evaporation of the catalyst-containing carbon target;
• and
• mixing, into a matrix, a fibrous carbon nanohorn aggregate of a plurality of single-walled carbon nanohorns connected fibrously in a one-dimensional direction while being radially assembled with an end pointing outward, the fibrous carbon nanohorn aggregate being obtained through a process including the setting, the evaporating, and the controlling.