The work aims to study the electromagnetic shielding capability of precision-guided ammunition packaging to design a feasible packaging scheme. First, the present situation of ammunition packaging in our army was analyzed, and the damage mechanism and protection strategy of electromagnetic pulse bomb were discussed. Then, various packaging materials were compared with the electromagnetic shielding materials based on theory of Sche1kunoff electromagnetic shielding. The plastic wood composite materials were featured by low cost, abundant raw materials, excellent properties and environment friendliness. Ni-P amorphous alloy had the merits of high conductivity, simple procedure, excellent properties and better adhesive force in cladding material. It is a more ideal choice for precision-guided aviation ammunition packaging to use the plastic wood composite material as the material of packaging box and the Ni-P amorphous alloy as the coating of packaging box.