The invention relates to a storied bulk grain warehouse for storing bulk grain, which comprises a warehouse bottom, a warehouse wall, interlayer warehouse floor slabs, a warehouse roof slab, beams, columns, a vertical conveyer, a multi-point discharging conveyer, warehousing distribution chutes and discharging chutes; wherein the vertical conveyer is arranged at the end of the warehouse, and is used to vertically lift and convey grain to the top of the warehouse, the multi-point discharging conveyer is fixed on the top of the warehouse, and is connected with the warehousing distribution chutes, grain is warehoused via the warehousing distribution chutes of each interlayer warehouse floor slabs, the discharging chutes are arranged on the interlayer warehouse floor slabs and pass through the warehouse wall, most of the grain can automatically flow out of the warehouse, and the rest can be discharged out of the warehouse by pneumatic grain elevators combined with free-flow conduits. When the storied bulk grain warehouse is used to store bulk grain, the prior spaces (such as passageways between freight lifts and grain stacks and passageways between grain stacks and walls) reserved for the storage of packed grain can be used to store bulk grain, and thereby the utilization rate of warehouse capacity can be greatly increased; when the storied bulk grain warehouse is used to store bulk grain, because bulk grain can absorb energy under earthquake load, and therefore the storied bulk grain warehouse has high shock resistance; when the storied bulk grain warehouse is used to store bulk grain, grain can be loaded, transported, unloaded and stored in bulk, consequently, the processes of manually packing and unpacking grain in the process of circulation are dispensed with, so that the labor cost is reduced, meanwhile, packs are saved, resources are saved, and the efficiency of grain transportation can be increased.