In order to explore novel nitrogen-rich heterocyclic energetic compounds， an amide bridged energetic compound 1-hydroxy-N-（1H-1，2，4-triazol-3-yl）-1H-tetrazole-5-carboxamide was synthesized from 5-cyano-1-（1H-1，2，4-triazol-5-yl）-1H-tetrazole through several steps involving amidoximation， diazotization， substitution and electrophilic addition. Its structure was fully characterized by nuclear magnetic resonance （NMR）， Fourier transform infrared spectroscopy （FT-IR） and elemental analysis （EA）. X-ray diffraction analysis （SC-XRD） was adopted to further confirm its structure； its thermal decomposition process was studied by differential scanning calorimetry （DSC） and thermogravimetry （TG）. The compound has a high onset decomposition temperature of 265 ℃ and shows good properties （detonation velocity： 8017 m·s^-1， detonation pressure： 23.1 GPa， impact sensitivity： 20 J， and friction sensitivity： 288 N）.