The thermal decomposition of 11 compounds containing azidomethyl-gem-dinitro groups was studied by DTA and the formal kinetic parameters E and A were obtained. Comparison of the kinetic parameters of some azides with those of trinitromethyl compounds with structures similar to the corresponding former＇s shows that E values increase due to the entrance of azide-group. The influences of the number and position of azidomethyl-gem-dinitro groups on the thermal decomposition kinetic parameters of azidomethyl derivatives were also studied.