A novel cage-like energetic compound， 6-nitro-2-oxa-6-azaadamantane-4，8-diol dinitrate， was synthesized from 1，5-cyclooctadiene via oxidative cyclization， O-acylation， elimination， epoxidation， aminolysis and nitration with an overall yield of 20.7%. The single crystal structure of 6-nitro-2-oxa-6-azadamantane-4，8-diol dinitrate was obtained by X-ray single crystal diffraction. Its structure was characterized using NMR， IR， and elemental analysis. Thermogravimetric analysis （TG） and differential scanning calorimetry （DSC） were used to study the thermal stability of the target compound. Density functional theory method was used to study the detonation properties of the target compound. Result show that it has a density of 1.75 g·cm^-3， a thermal decomposition temperature of 184 ℃， a detonation velocity of 7730 m·s^-1， and a detonation pressure of 26.07 GPa.