Sponge three-dimensional warehouse is used to store newly foamed and incompletely matured sponges. It can store long and short sponges, and can be matched with mobile conveyor lines or mobile warehouses to allow sponges to enter each compartment of the warehouse. Each conveyor line in the warehouse can be independently synchronized with the previous conveyor line. Through PLC and human-machine interface, sponges can be automatically transported into and out of designated warehouses. Using this system can accelerate sponge cooling, ensure sponge quality, and save a lot of manpower