A novel 1:1 cocrystal explosive of 2,4,6,8,10,12-hexanitrohex-aazaisowurtzitane (HNIW) and benzotrifuroxan (BTF) has been prepared. The Structure of this cocrystal was characterized by single crystal X-ray diffraction (SXRD). Properties of the cocrystal including thermal decomposition and detonation performance were studied. Further, the cocrystal explosive is predicted to display superior detonation power compared to BTF.