《秦始皇东侧第三号兵马俑坑清理简报》曰:“在二、三号坑之间还有一个未建成的废弃坑,面积约4600平方米,仅有土扩,未发现木构建筑遗迹及砖铺地,也未见陶俑、陶马等文物,这有可能是拟议中的一个军阵;因陈胜、吴广领导的农民起义爆发,而未能建成。”由于认为该坑是一个未建成的兵马俑军阵,故称其为秦俑四号坑 “The First Terracotta Warriors and Horses Pit on the East Side of the First Emperor of Qin Dynasty” Briefing Note: “There is an unbuilt abandoned pit between No. 2 and No. 3 pits with an area of ​​about 4,600 square meters. Only soil expansion has occurred. There was no clay figurine, pottery horse or other artifacts in the brick pavements, which could have been the proposed military array; peasant uprisings broke out due to Chen Sheng and Wu Guang and failed to be completed. ”Since the pit was considered as an unbuilt Terracotta Warriors array, it is called the Pit No.4 pit