To provide a rubber particulate highly-blended with carbon nanotubes, usable as a master batch capable of remarkably improving work efficiency such as workability, dustability and handleability, wettability and dispersibility with a polymer matrix, electrical conductivity and mechanical properties, when blending carbon nanotubes into a resin.

In this rubber composition highly-blended with carbon nanotubes, 100-1,500 pts.wt. of carbon nanotubes are blended to 100 pts.wt. rubber, and the carbon nanotubes are coated with the rubber, respectively.