In the early 20 th century the ratio of positive ions and negative ions in the air is 1/1.2.A century later,however,that is significantly changed to 1.2/1 because of the increasing of population and environmental pollution,which means that our living environment is severely lack of negative ions.Applied the technology of negative ions to fiber products can improve the current situation of the priority of positive ions.This paper prepared two kinds of anion fibers by different methods,copolymerization and po...