The achievement of rapid energy release at a low activation energy is vital for the improvement of the thermal decomposition characteristics of 1，1-diamino-2，2-dinitroethylene （FOX-7）. Herein， MoS₂ doped FOX-7 （FOX-7/MoS₂） energetic composites were prepared by the solvent-antisolvent method. Scanning electron microscopy （SEM）， energy dispersive spectrometer （EDS）， X-ray powder diffraction （XRD）， X-ray photoelectron spectroscopy （XPS）， thermogravimetric-differential scanning calorimeter （TG-DSC） were employed to investigate the morphology， phase composition， thermal decomposition characteristics， and decomposition activation energy of composites. The doped FOX-7/MoS₂ energetic composites displayed improved decomposition temperature at low temperatures and fastened decomposition heat release at high temperatures. Compared with the raw material FOX-7， the decomposition temperature and activation energy of FOX-7/MoS₂-5% during the low-temperature stage increased by 6.8 ℃ and 78.6 kJ·mol^-1， respectively. The decomposition temperature and activation energy at the high temperature decreased by 23.4 ℃ and 340.4 kJ·mol^-1， respectively. The TG-MS results showed that the proportion of CO₂ in the FOX-7/MoS₂-5% increased from 7.3% to 16.8% at the high-temperature stage， indicating a promoted and completed decomposition of FOX-7 using the MoS₂ dopant.