It applies to packaging instruments, equipment, materials, tents, etc. After taking out the relief supplies, the empty box can be disassembled into 6 pieces and placed on the outdoor sidewalk or rescue site. This packaging box is ingeniously designed, with packaging and flooring functions. Therefore, it can significantly improve the working conditions on-site, especially in wet outdoor conditions. The box can be assembled into an instrument cabinet, instrument cabinet, storage cabinet, or an additional partition, which reduces the furniture, such as tables, chairs, storage units, etc. More ingeniously, several boxes can be disassembled and laid on the ground as a floor, effectively improving the outdoor working environment.