The structure of 4-amino-3-(5-tetrazolate)-furazan(HAFT) was characterized by single crystal X-ray diffraction.The thermal decomposition process of HAFT was investigated by MS-FTIR-DSC-TG coupling technique.The result shows that the exothermic process occurs from 278.7-350 ℃,with a peak temperature of 324.7 ℃.The thermal decomposition gaseous products of HAFT are NO2,CO2,HCN,CO,NH3 and H2O.The detonation velocity and detonation pressure of HAFT were calculated by the nitrogen equivalent equation.The detonation velocity of HAFT is 7727.46 m/s,which is higher than that of TNT(7178 m/s).The detonation pressure of HAFT(25.27 GPa) is satisfactory.The sensitivity tests reveal HAFT possesses excellent insensitivities to impact and friction.