Conductive fiber refers to chemical fiber, metal fiber, carbon fiber, etc. spun by mixing conductive medium into polymer. It has excellent performance of eliminating and preventing static electricity, which is much higher than that of antistatic fiber, and the specific resistance value is permanent and basically unaffected by humidity. According to the distribution of conductive components, it can be divided into three types: uniform type, coated type and composite type. Generally, it is made by mixing, evaporation, electroplating and composite spinning, and adding conductive media such as carbon black, graphite, metal powder or metal compound into the fiber. Its crystal can be used for electrostatic induction shielding, and the fabric mixed with a small amount of conductive fibers can also be used as special work clothes, dust brushes and so on.