"Abandoning ore fields and opening buildings" is the content of Shang Yang's political reform. Abolish the aristocratic well field system, "open up the border", abolish the slavery state-owned land system, and implement private land ownership. The state recognizes private ownership of land and allows free transactions.

During the Warring States Period, Qin Xiaogong, king of Qin, was determined to reform and recruit talents. Shang Yang entered the Qin Dynasty from defending the country, and put forward a set of reform and innovation development strategies, such as abandoning ore fields, attaching importance to agriculture and mulberry, rewarding meritorious military service, implementing unified quantity and establishing county system, which won the trust of Qin Xiaogong and made him a regular in Zuo Shu. In 356 BC and 350 BC, he twice practiced the method of "abandoning ore fields, building buildings, implementing the county system, appreciating the farming method and practicing sitting together".

After Shang Yang's political reform, Qin's economy developed, and the fighting capacity of the army continued to strengthen, and it developed into the most prosperous feudal country at the end of the Warring States Period.