The invention belongs to the technical field of forming mixed substances in a preset ratio, and discloses a drilling fluid material automatic feeding system and method for realizing automatic unloading, automatic warehousing, automatic stacking, automatic delivery, automatic unpacking and feeding, automatic material conveying, automatic waste bag packing and the like of drilling fluid materials. Arealization method is divided into three layers: a scene control layer for realizing automatic control of material unloading, warehousing, stacking, delivery, unpacking and feeding devices, a scene dispatching layer for realizing coordination control of each link operation of material unloading, warehousing, delivery, unpacking and feeding, and a management layer for taking charging of material batching, material warehousing and delivery management, real-time monitoring of material unloading, storage, unpacking and feeding process, real-time information transmission, report printing and the like. The drilling fluid materials can be automatically fed; the information management is performed on warehousing and delivery of the drilling fluid materials; and the information communication withsuperiors is realized through a network.