The bag bottom is integrally stitched and fixed with plastic or solid wood pallets, firmly combining the bag body and pallet. The overall structure stays stable after full loading. Forklift tines can directly access the pallet to transport the whole bag, eliminating manual pallet sleeving and binding procedures and greatly shortening loading and unloading time. Pallet sizes can be customized to national standard or non-standard specifications, and the reinforced wear-resistant bag body adapts to frequent forklift operations.