The present invention provides an aggregate of carbon nanotubes which has an acid adsorption amount equal to or greater than 0. 6 mass% and equal to or less than 12 mass%, which is obtained by subjecting a starting material composition containing carbon nanotubes to a two-stage wet oxidation treatment. The present invention provides an aggregate of carbon nanotubes capable of exhibiting excellent electrical conductivity when used to configure a transparent conductive film, and a production method therefor.