A new C—N bitriazoles compound 1-amino-3-nitro-5-(5-amino-3-nitro-1, 2, 4-triazole-1-yl)-1, 2, 4-triazole(DANBT) was synthesized with 5-amino-3-nitro-1, 2, 4-triazole(ANTA) and 1-amino-3, 5-dinitro-1, 2, 4-triazole(ADNT) as starting materials, and its structure and thermal performance were characterized by IR, MS, NMR and differential scanning calorimetry(DSC), respectively.Results show that the melting point and decomposition peak temperature are 221.8 ℃ and 291.8 ℃, indicating that NANBT has better thermal stability than ANTA and ADNT.The detonation velocity and detonation pressure calculated with the Kamlet-Jacobs equation of DANBT are 8.69 km·s^-1 and 33.91 GPa, respectively.