As to the manufacturing process of energetic materials, the heat preservation as the main process of accurately regulating the temperature and water content of materials, plays a core role in ensuring the safety of production process and the quality of final product. To prevent safety hazards caused by excessive moisture content in heat preservation materials and local hot spots in the packed bed, it is imperative to establish a descriptive methodology capable of accurately characterizing the dynamic behavior changes of heat preservation materials. The energetic materials heat preservation process is fundamentally a dynamic equilibrium process of porous media under unsteady thermo-hydro coupling effects, involving multiple complex phenomena including local non-equilibrium heat transfer at gas-solid interfaces, component diffusion with phase transitions, and thermal decomposition of the solid matrix. To this end, this study establishes a thermal-conditioning kinetics model based on Volume Averaging Theory and porous media modeling assumptions. By rigorously describing moisture content and temperature variations in materials, the model elucidates thermo-hydro transport mechanisms within energetic materials during thermal conditioning, thereby providing theoretical foundations and methodological references for optimizing energetic materials heat preservation processes.