Fast-assembly packing boxes and folding packing boxes provide practical solutions in the field of engineering and construction with industrial prefabrication and modular design. Its core value is reflected in the quantifiable engineering benefits: the folding box can be quickly unfolded (about 5 minutes) through the hydraulic mechanism, and the space utilization rate is increased to three times that of the folded state; the fast-assembly box is connected with embedded bolts, and the assembly time of a single box is about 2 hours, which is significantly faster than traditional construction. The advantages of the transportation link are clear: the volume of the folded state is reduced by about 80%, and the transportation volume is doubled under the same transportation capacity; the fast-assembly components are compactly packaged, and the loading efficiency can reach 5 times that of the unfolded state, effectively controlling the logistics cost of remote projects. The space combination is flexible, and the horizontal splicing can form a 9.6-meter column-free continuous space, and the vertical safe stacking can reach three layers, meeting the diverse needs of construction sites, temporary offices, etc. The structural performance has been strictly verified: the galvanized steel frame meets the requirements of earthquake resistance of level 8, the A-level fireproof filling material ensures safety, and the spiral pile system can be stably installed on a 25° slope without a concrete foundation. Reliable environmental adaptability: -30℃ insulation wall and 60℃ insulation roof can cope with extreme climate, and the pre-buried pipeline interface supports rapid access to the photovoltaic power supply system. The full-cycle cost is competitive: transportation costs are reduced by about 50%, the welding-free process reduces professional labor input by 60%, 95% of component materials can be disassembled and recycled, and on-site construction waste is reduced by 80%, which complies with green construction specifications. In scenarios such as rapid deployment of emergency hospitals, construction of camps in plateau mining areas, and construction of temporary command centers, the two types of boxes have become the best choice for engineering management with their predictable construction period, controllable cost and stable performance.