The non-isothermal crystallizations of 3,4-dinitrofurzananofuroxan （DNTF）, 2,4,6-trinitrotoluene(TNT) and DNTF-TNT eutectic system in RDX were investigated by differential scanning calorimeter (DSC). The results show that RDX and hexanitrostibene （HNS） added to DNTF，TNT and DNTF-TNT eutectic system can reduce the “super-cooling degree” and eliminate heating-self in crystallizations of these systems. The various kinetics models were used to investigate the crystallization behaviors of DNTF，TNT and DNTF-TNT eutectic systems. The crystallization kinetics exponents n were obtained by Avrami equation and the mechanism functions were proposed. Ozawa exponents m were obtained by Avrami-Ozawa equation, and activation energy of non-isothermal crystallization kinetics parameters for DNTF,TNT and DNTF-TNT were obtained to be -378.19,-260.70 and -145.59 kJ·mol^-1 respectively by Kissinger.