The thermal decomposition of energetic materials such as CL-20、HMX、RDX、NC、NG、NG+NC were investigated by using the methods of differential scanning calorimetry (DSC)、pressure differential scanning calorimetry (PDSC) in static and dynamic atmosphere and the influence of high pressure of static and dynamic atmosphere on the thermal decomposition of these energetic materials are discussed in this paper. As a result, it is showed that the thermolysis of energetic materials influenced by different pressure of static and dynamic atmosphere can be divided into three species: 1. The thermal decomposition are influenced by pressure and dynamic atmosphere simultaneously; 2. The thermal decomposition are influenced neither by the pressure nor by the dynamic atmosphere; 3. The thermal decomposition are influenced only by the pressure.%利用常压和高压差示扫描量热仪(DSC、PDSC)在动态和静态状态下研究了CL-20、HMX、RDX、NC、NG、NG+NC等几种含能材料的热分解，探讨了常压与高压条件下，静态与动态对这些含能材料热分解的影响。结果显示含能材料热分解受压力和动态气氛的影响有三种情况：1.热分解同时受到压力和动态气氛的影响；2.热分解既不受压力也不受动态气氛的影响；3.热分解只受压力的影响而不受动态气氛的影响。
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