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-Phenylene terephthalamid (PPTA) fiber is a kind of high tenacity and high modulus fiber

which is prouced by dry-wet spinning through liquid crystal solution and is the most important high-tech fiber currently. New technique and varieties of PPTA fiber have been developing by the factories and institutes of the same field to make it better properties and reduce the cost as low as possible with the increasing demand of PPTA fiber and market competition. In this paper

the new technologies and varieties having different special function of the PPTA fiber are reviewed and the structure

property and developing prospect of PPTA fiber are introduced in brief.