The hexamethylene diamine (for short as HMDA) is an important base material for chemical polymer, which is mainly applied in manufacturing nylon 6 and nylon 66 resin to made various fiber and plastics product. Moreover, it can also make polyiminocarboxylic ester foam plastics, hexamethyl diisocyanate foam, coating material and ZSN type of pumice. HMDA can be used to make viscous agent, additives in rubber manufacturer, stabilizer and bleaching agent in weaving & paper making industry. Meanwhile, HMDA could be applied in modified natural fiber, electron kinescope, chromatogram sample and component of combined concrete additives.