The recrystallization method of nitroguanidine (NQ) is modified to pre pare particulate crystalline from its needle form. Different properties of the final prod ucts obtained therefrom were determined,including crystal parameters, crystal density,bulk density, vibration density of the sample from graded granula combination,melting point and impact/friction sensitivity.The granular NQ is an acceptable insensitive explosive used as a filler for cast and/or compressed charges.