In order to study the dispersibiliy and formability of explosives with nano-aluminum, the different solvents were used to disperse the nano-aluminum. Using the methods of ultrasonic wave, high-speed shear stirring, blade stirring, pre-stirring and high-speed shearing, the nano-aluminum was dispersed in the RDX/Al system. The fomability with different content of aluminum in TNT was investigated by the process of the melt-cast granulation, with different content of nano-aluminum in RDX/Al system by the process of the solvent paste process. The results showed that ethyl acetate was the best solvent in the dispersion of nano-aluminum; the ultrasonic wave could improve the distribution uniformity of nano-aluminum in the RDX/Al system, and the three kinds of distribution process had the same dispersion effect; the formability of micro-aluminum in TNT was in line with that of nano-aluminum; in the pressed explosives of RDX/Al, the formability of nano aluminum-contained explosives were inferior to that of micro aluminum contained explosives. The density of micro aluminum-contained explosives was linear, whereas the density of nano aluminum-contained explosives was nonlinear with the content of aluminum.