Abstract: Rapid thermolysis Styphnic acid(TNR) compounds(kalium,cesium,argentum) were studied by T-jump/FTIR spectroscopy.The species of the volatile metal compounds which are liberated in the processes of the flash pyrolysis of Styphnic acid(TNR) compounds(kalium,cesium,and argentum) were determined.In addition,the three-dimensional and planar spectrogram of main IR-active gas products were obtained.We also got the change curve which delegated the concentration of gas productions along with time and reactive equations in the process of flash pyrolysis.The qualitative and quantitative analysis of main IR-active gas products from flash pyrolysis of these compounds were accomplished,furthermore,the thermal decomposition mechanism was derived.