Carbon nanotubes were used in modifying three organic antistatic agents. The friction charges were measured to exhibit the antistatic ability of polymer fibers. Organic antistatic filler grains:CNTs/PR86, CNTs/TS40 and CNTs/TS51, prepared by dispersing CNTs in organic antistatic carrier, was cospun with polymer to prepare composite antistatic fibers. It is indicate that CNTs further improved the antistatic ability of organic antistatic agents in PP fibers compared to pure organic agent.