Bistetrazole has become a research focus in the field of energetic materials due to its 80% nitrogen content and excellent detonation performance. However， its poor stability seriously restricts practical engineering applications. In this work， 5，5''-bistetrazole diammonium salt was used as the starting material， and bromonitromethane was grafted onto the bistetrazole skeleton via nucleophilic substitution reaction. A novel nitromethyl-substituted bistetrazole energetic compound 1 with significantly improved stability， which can be potentially used in eutectic systems， was successfully synthesized. The structure of compound 1 was characterized by nuclear magnetic resonance spectroscopy（NMR）， elemental analysis（EA）， and infrared spectroscopy （IR）. Its precise crystal structure was further determined by single-crystal X-ray diffraction： the compound crystallizes in the monoclinic system， space group C2/c， with cell parameter Z = 8 and crystal density 1.683 g·cm^-3. Performance test results show that compound 1 exhibits an impact sensitivity of 15 J， friction sensitivity of 324 N， detonation velocity of 8325 m·s^-1， and detonation pressure of 28.4 GPa， demonstrating superior overall performance compared to TNT （D_v = 6881 m·s^-1， p = 19.5 GPa， IS = 15 J， FS = 353 N）.