It can be used as solvent, catalyst and raw material in organic synthesis industry. It can be used to prepare phosgene method polycarbonate catalyst, tetrafluoroethylene polymerization inhibitor, rubber vulcanization accelerator, special solvent in paint remover, enamel anti-hardening agent, acid binding agent, surfactant, preservative, Fungicides, ion exchange resins, dyes, fragrances, drugs, high-energy fuels, and liquid rocket propellants. The products that consume triethylamine in the pharmaceutical industry are (consumption quota, t / t): ampicillin sodium (0.465), amoxicillin (0.391), Pioneer IV (2.550), cefazolin sodium (2.442), cefradine (1.093), Oxypiperazine penicillin (0.584), Ketoconazole (8.00), Vitamin B6 (0.502), Fludronic acid (10.00), Praziquantel (0.667), Titipipe (1.970), Penicillamine ( 1.290), berberine hydrochloride (0.030), verapamil (0.540), alprazolam (3.950), o-chlorophenylacetic acid (0.010), and piperacic acid. It is used as a catalyst for preparing polycarbonate by phosgene method, as a catalyst or solvent and raw material in organic synthesis.