Bis(3-nitro-1H-1,2,4-triazol-5-yl)methane (BNTZM) was synthesized and the crystal structure was determined by X-ray diffraction. It belongs to orthorhombic system with space groupFdd2. Its thermal behavior and non-isothermal decomposition kinetics were studied with DSC and TG/DTG methods. The self-accelerating decomposition temperature (T-SADT), thermal ignition temperature (T-TIT), and critical temperature of thermal explosion (T-b) are 540 K, 552 K, and 558 K, respectively. Its detonation velocity (D) and detonation pressure (P) were estimated using the nitrogen equivalent equation according to the experimental density. The above results of BNTZM were compared with those of Bis(5-amino-1H-1,2,4-triazol-3-yl)methane (BATZM) and 5,5'-dinitroimino-3,3'-methylene-1H-1,2,4-triazole (DNBTM), and the effect of amino, nitro and nitroimino group on them were discussed.