1-（Trinitromethyl）-3-nitro-5-azidopyrazole （compound 1） was synthesized from 1-acetonyl-3，5-dinitropyrazole via nitration. The 1-（dinitromethyl）-3-nitro-5-azidopyrazole potassium salt （compound 2） was further prepared through a salification reaction with KI. The structures of both two compounds were characterized by Fourier-transform infrared spectroscopy （FT-IR）， nuclear magnetic resonance （NMR）， and single crystal X-ray diffraction. The results show that compound 2 contains both azido and dinitromethylene groups， exhibiting superior overall properties of high decomposition temperature （151.41 ℃） and detonation velocity （8369 m∙s^-1）. The relatively high sensitivity towards external mechanical stimuli make it suitable to be a primary explosive. The detonation performance of compound 2 was further analyzed using Gaussian and Explo5 software. This research provides valuable insights for the design of novel green explosives.