喺戰國初係秦國嘅最高官職，係掌握著軍政大權。到咗商鞅變法嘅時候，商鞅為咗獎勵啲軍功俾人，就整咗個二十等爵制，其中將大良造列到第十六級，亦叫做大上造。到咗秦惠王十年（前328年），仿效中原啲諸侯國制度，加設咗相國一職掌握軍政大權之後，大良造就轉咗做爵名用，沿用到漢王朝。秦國嘅一啲有立過軍功嘅名臣，都獲封過做大良造，譬如係商鞅、公孫衍、白起等。
At the beginning of the Warring States period, it was the highest official position in the Qin State, and it held the military and political power. When it came to Shang Ying's reform, Shang Ying became a twentieth rank lord system in order to reward some military merits, among which Daliang Zao was listed as the sixteenth level, also known as Da Shangzao. In the tenth year of King Qin Hui (328 BC), following the system of some vassal states in the Central Plains, the post of Xiangguo was added to grasp the military and political power, and Daliang was changed to be used as a knighthood, which was used in the Han Dynasty. Some famous ministers of the Qin State who have made military merits have also been awarded the title of Great Liangzao, such as Shang Ying, Gongsun Yan, Bai Qi, etc.