5-nitro-1,3-benzenedichloroaldehyde oxime was designed and synthesized to achieve room temperature curing of HTPB binders, and its structures were characterized. A new kind of 1,3-dipolar cycloaddition reaction system was formed by HTPB as main resin, 5-nitro-1,3-benzenedichloroaldehyde oxime and triethylamine as curing agent. The results revealed that the formation of isoxazoline ring in cured HTPB elastomers mainly derived form the reaction of Nitrile N-Oxide with cis alkene of HTPB, and the cured HTPB elastomers underwent three stages decomposition. The kinetic parameters and thermodynamic parameters for the 14 % curing agent's sample were obtained from the DSC data. The activation energy was computed to be 204.75 kJ mol(-1) and pre-exponential factor was 1.38x10(23) s(-1).The burning rate of the propellant showed that the propellant with HTPB cured by containing -NO2 Nitrile N-Oxides (100 % HTPB, 14 % Nitrile N-Oxides, 2 % Aluminum and 77 % Ammonium perchlorate, Curing at 25 degrees C for 5 days ) had a higher burning rate and pressure exponent compared to conventional HTPB propellant (100 % HTPB, 14 % toluene diisocyanate, Nitrile N-Oxides, 2 % Aluminum and 77 % Ammonium perchlorate, Curing at 60 degrees C for 5 days). Therefore, the containing -NO2 Nitrile N-Oxides curing system could be used as a novel promising curing system for HTPB-based solid composite propellants.