Three ferrocenyl nitrogenous heterocyclic compounds containing polar functionalities were designed and synthesized,and their structures were characterized by ¹H NMR,IR and MS spectra. The thermal decomposition properties of AP with 5% (weight) of the titled compounds were investigated by differential thermalanalysis (DTA) and thermogravimetry (TG). Results show that the second exothermic peak temperature of AP is reduced by 89.10 ℃ and the temperature difference between the two exothermic peaks can be reduced to 25.82 ℃.