The single crystal of 3,4-bis (nitrofurazano) furoxan (BNFF) was obtained using acetone as solvent. Its molecular structure was characterized by elemental analysis, IR, MS, ¹³C NMR and single-crystal X-ray diffraction. The results indicate that BNFF crystal belongs to orthorhombic, space group P212121 with a=0.6794 (3) nm, b=1.0755 (5) nm, c=1.5137 (4) nm, V=1.1060 (7) nm³, M_r=312.14, Z=4, D_x=1.874 g·cm^-3 ,D_c=1.875 g·cm^-3, F(000)=624, μ(MoKα)=0.176 mm^-1, R₁=0.0757, wR₂=0.1206. Three 5-membered furazan rings of BNFF molecule are planar and the dihedral angles between them are 62.16 (0.29)° and 25.67 (0.36)°