2-Chloro-3, 5-dinitro-pyridin-4-amine was obtained by the nitration of 2-chloropyridin-4-amine as raw material, followed by condensation with 5-aminotetrazole, to give new 2-(5-amino-tetrazol-1-yl)-3, 5-dinitro-pyridin-4-ylamine(1) in yield of 64%.The new energetic compound 6-(5-amino-tetrazol-1-yl)-3, 5-dinitro-pyridin-2-ylamine(2) was synthesized by condensation of 6-chloro-3, 5-dinitro-pyridin-2-amine with 5-aminotetrazole in yield of 41%.The structures of compounds 1 and 2 were characterized by ¹H NMR, IR, MS and elemental analysis.Thermal behaviors of compounds 1 and 2 were studied by TG and DSC.The detonation velocity, detonation pressure and oxygen balance for compounds 1 and 2 were calculated.Results show that compounds 1 and 2 have same detonation velocity, detonation pressure and oxygen balance with the values of 8.18 km·s^-1, 30.7 GPa and -62.9%, respectively.The mass loss of compound 1 in the temperature range of 280-325 ℃ is 71%, while its decomposition temperature is 304.50 ℃.The mass loss of compound 2 in the temperature range of 285-415 ℃ is 65%, while its initial decomposition temperature is 310.67 ℃.