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Density functional theory (DFT) method of the Amsterdam Density Functional package (ADF) was used to calculate of 3,3-dinitroazetidinium salicylate (DNAZ?SA) and 3,3-dinitroazetidinium 3,5-dinitrosalicylate (DNAZ?DNS) geometry and frequencies.Their mayer bond orders and frontier orbital energy were obtained.Thermal behavior of 3,3-dinitroazetidinium salicylate (DNAZ?SA) was studied under a non-isothermal condition by DSC and TG/DTG methods.The kinetic parameters were obtained from analysis of the DSC curves by Kissinger method,Ozawa method,the differential method and the integral method.The main exothermic decomposition reaction mechanism of DNAZ?SA is classified as chemical reaction,and the apparent activation energy (Ea),pre-exponential factor (A) and the mechanism function of the reaction are 92.61 kJmol–1,1010.07 s–1 and f(α) = 2α1/2,respectively.Using the self-accelerating decomposition temperature (TSADT),thermal ignition temperature (TTIT),critical temperatures of thermal explosion (Tb) and half-life (t1/2 Biao Yan E-mail: donghuhai@qq.com Haixia Ma E-mail: mahx@nwu.edu.cn Project supported by the National Natural Science Foundation of China (No.21073141),the education Committee Foundation of Shaanxi Province (No 11JK0564 and 11JK0582) and the Project–sponsored by SRF for AT,YLU (Grant No.09GK019).) were obtained to evaluate they thermal safety.Their detonation velocity (D) and pressure (P) were estimated by using the nitrogen equivalent equation according to the experimental density.The stability and detonation performance of DNAZ?SA were compared with 3,3-dinitroazetidinium 3,5-dinitrosalicylate (DNAZ?DNS).