Triaminoguanidine azide (TAZ) contains 85.7% of nitrogen in its molecule which release bond energy(367kJ/mol) and large ammout of nitrogen gas while burning. TAZ,therefore is an ideal propellant fuel to enhance the specific impuls and decrease the combustion temperature. By using dicyandiamide,sodium azide,nitric acid,methanol,hydrazine hydrate as basic materials,TAZ was prepared via triaminoguanidine nirate by the method of ion exchange and the approaches to increase the yield of TAZ were searched for. The products of TAZ and TAGN were determined by means of infrared spectrum,mass spectrum and elemental analysis.