Since been discovered, CNTs have been recognized as the strongest, rigidest and most tenacious molecule with great thermal and electric conductivity. It can be widely used in the fields of field effect transistor (FET), transparent electrode, functional nano-structure composite materials, Li ion batteries, super capacitors, and so on. The CNTs DyedFiber has excellent conductive and electric heating properties with high market value. Meanwhile, it can be a basic product to develop the CNTs DyedFiber Cable and CNTs DyedFabric in the future. Those products will be applied in anti-static, agriculture, road snow melting field, and of course many other potential applications.