In order to study the safety performances of the mixed explosives of 3,4-dinitrofurazanfuroxan (DNTF) and dihydroxylammonium 5,5´-bistetrazole-1,1´-diolate (HATO), the sensitivity of DNTF/HATO with different proportions were studied. The critical diameter of DNTF explosive was about 0.2 mm. When the HATO content was less than 55%, the mechanical sensitivity of DNTF/HATO decreased linearly with the increasing HATO content. The shock wave sensitivity of DNTF/HATO was similar to that of DNTF when the HATO content was no more than 50%, and only decreased when the HATO content was 55%. The thermal decomposition temperature of HATO decreased from 243 ℃ to 230 ℃ for DNTF/HATO. The molecular dynamics of DNTF/HATO was simulated by Dreiding force field. With the increasing HATO content, the bond length of C—N and C—O which connected NO₂ and the ring in the DNTF molecule showed decreasing trend for DNTF/HATO, suggesting the enhanced structural stability of DNTF/HATO.