The invention relates to a green high temperature nylon, comprising the following ingredients: 50.5-99.8 wt% of pure hexylenediamine, 18-68 wt% of soft water, 11-35 wt% of pure adipic acid, 0.1-3.0 wt% of active carbon, and 0.2-3.0 wt% of activator. According to the invention, no methanol or ethanol or other solvent is used in the invention, so that the green high temperature nylon has low smoke and low toxic, is difficult to cause the decline of mucous membrane of respiratory tract and impaired vision, and has the advantages of safety, reliability, easiness in operating, and short process flow.