The six countries that Qin Shihuang unified were Qi, Chu, Yan, Han, Zhao and Wei.

1, Qi State-in today's Shandong Zibo.

The territory is located in today's Shandong. At first, he was appointed as a Buddhist and strategist in Zhou Wuwang. Zuo Qiuming's Zuo Zhuan Xiang Gong Twenty-seven Years, Guo Yu Zheng Yu and Sima Qian's Chronicle of Twelve Governors were jointly evaluated as one of the four great powers in the Spring and Autumn Period.

2. Chu State-in Jingzhou City, Hubei Province.

During the period of Chu Xuanwang and Chu Weiwang, the territory started from Daba Mountain, Wushan Mountain and Wuling Mountain in the west, to the sea in the east, to Nanling Mountain in the south, and to central Henan, northern Anhui, Jiangsu, southeastern Shaanxi and southwestern Shandong in the north, with a vast territory. Chu has now entered its heyday.

3. Yan State-in today's Beijing.

During this period, the territory of Yan State mainly included northern Hebei, present-day Beijing and Daling River basin in western Liaoning, surrounded by Rongdi and Ai tribes, and bordered by Qi in the southeast.

4, South Korea-in Xinzheng, Henan Province today.

In 375 BC, Han Aihou destroyed the State of Zheng and established Xinzheng (now Zhengzhou, Henan) as its capital. 325 years ago, Wei Huiwang and Han Xuanhui (Han) met in Wusha and were honored as kings. In the first 230 years, South Korea was destroyed by the State of Qin, and Yingchuan County was located.

5, Zhao-in Handan, Hebei Province today.

Zhao borders East Lake and Yan in the northeast, Zhongshan and Qi in the east, Wei, Wei and Han in the south, Loufan and Hu Lin in the north and North Korea and Wei in the west.

The capital was in Jinyang (now Taiyuan) and moved to Zhongmou (now Hebi) in the first 425 years. Before 386, Zhao Ba moved to Handan (now Hanshan District, Handan City, Hebei Province). In the first 372 years, Zhao Cheng became the capital of Xin (now Qiaodong District, Xingtai City, Hebei Province), Xin was the capital of Zhao, and Zhao established its capital in Handan and Xingtai for a century and a half.

6. Guo Wei-Kaifeng, Henan Province today.

The current territory includes southern Shanxi, north-central Henan, western Shaanxi and southern Hebei. It is bordered by Qin in the west, Huaihe and Shui Ying in the east, Qi and Song in the west, South Korea in the southwest, Chu in the south and Zhao in the north.

The first capital of Wei was Anyi (now Xiaxian County, Shanxi Province). In 364 BC, King Hui moved the capital from Anyi to Daliang (now Kaifeng City, Henan Province). From then on, Wei called Liang.

Extended data:

After Qin Shihuang unified the six countries, in order to consolidate his power, he implemented a series of policies, mainly: unifying currency and weights and measures; Unified text; Build the Great Wall and gallop the right path; People and civilians in six countries were forced to move.

After Qin unified the six countries, in order to prevent the nobles of the six countries from "rekindling old feelings" due to clan relations, they were forced to move to Xianyang to look after the imperial tombs, or to move to remote areas in southwest China. Some civilians are also forced to move, which is called "migration" to do hard work, such as mining and digging salt wells.

In 2 15 BC, Qin Jun general Meng Tian captured the south of Jiuyuan River, set up 34 counties, and established Jiuyuan County (located in the northwest of Baotou City, Inner Mongolia).

After the unification of the six countries, all kinds of schools and talents that Shang Yang strongly opposed during the political reform came to work in Qin. Perhaps Qin Shihuang adopted the "Shang Yang Reform with Qin characteristics", which led to the prevalence of various superstitions in the Qin Dynasty.

Among them, Huang Laotao and Yin Yangjia put forward the so-called "Five Ends First Virtue" by integrating Confucianism, Buddhism and Taoism. In particular, the first emperor trusted Qin, believing that Qin was a virtue, and that virtue and Zhou's water would suppress fire, so Qin won the world.

Qi Yan's Confucian scholars also revised the Confucian theory of "spreading the wrong with the wrong", arguing that there has been a saying of "spreading the wrong with the wrong" since ancient times.