The hidden dangers exist in current ammunition wood packaging box were introduced, which were burning and explosion, during army service such as storage, transportation and usage in war because of its materials and structures' characters. By means of survey and study into domestic wood fire-prevention condition and considering the character of ammunition wood packing box, a comparative test was carried out to find the difference in burning time and the rate of mass loss between the two kinds of wood materials, one's surface painted with the newly-developed fire retardant and the other without. The result showed that the ammunition wood packaging box treated by fire-prevention has excellent fire-prevention effect. The purpose was to provide reference for production.