Cainiao's Guangzhou Zengcheng Cat Super Warehouse has rolled out 135 ZeeBot climbing robots capable of moving freely along the Z-axis. Paired with 9-meter-high, 20-layer dense shelving, long-tail products are stored in the robotic zone and operate in parallel with the manual warehouse that handles high-turnover items. Storage capacity per unit area and picking efficiency have been substantially improved, with overall storage efficiency roughly tripled compared to before the upgrade and labor efficiency rising to about 2.5 times. During major promotional events, supported by global scheduling algorithms and large-model optimization, hundreds of robots work in coordination. Throughout the 28-hour order peak, they accumulated more than 140 kilometers of vertical travel, and the on-time wave outbound rate reached 99.99%. This solution eliminates the need for pre-binding to fixed tracks and allows flexible capacity adjustments by adding or removing robots; the robots can simultaneously perform horizontal movement and vertical climbing, reducing equipment handover steps and lowering failure risks. At present, the warehouse still operates on a human-machine collaboration model, with workers responsible for sorting and packing, replenishment, and exception handling, while fine picking by robotic arms remains in the early stages of development. The entire intelligent fulfillment system ultimately translates efficiency into delivery timeliness assurance that consumers can perceive.