In 685 BC, Qi Huangong succeeded to the throne, taking Guan Zhong as the prime minister, reorganized the national politics, abolished the mineral field system, set taxes according to the fertility of the land, set up salt and iron officials to cast money, increased fiscal revenue, and integrated military and agricultural organizations, thus increasing the source of soldiers and fighting capacity, and quickly became the richest country in China. And then it started? Respect the king and oppose the foreign countries? He repeatedly called on vassals to help or interfere in other countries and fight barbarians, and finally became the overlord in the third year of King Zhou Nuo (679 BC). In the twenty-first year of King Hui of Zhou (656 BC), Qi Huangong led the allied forces of eight vassal states, forced Chu to submit to him with superior forces, and formed the League of Summoning Mausoleum, which became the first of the five tyrants in the Spring and Autumn Period. Since then, Qi Huangong has established the overlord alliance system.

After the death of Qi Huangong, Li Diao, Yi Ya, etc. There was chaos in the world, five sons fought for power, and Qi was in civil strife. It is said that Qi Huangong's five sons fought each other, and the arrow hit Qi Huangong's body, and no one cared. With the rise of Chu State in the south, King Chu Cheng pointed his finger at the Central Plains after destroying several small countries in the north. On the basis of supporting Duke Xiao of Qi and pacifying Qi chaos, Song Xianggong tried to reunite the governors and dominate the world. However, the lack of strength and prestige of the Song State is a disgrace to the State of Chu. In the 15th year of Song Xianggong (638 BC), the two armies of Song and Chu fought in a flood. When Chu army crossed the river, Song Sima suggested? Half-crossing Song Xianggong said, attacking when the enemy is crossing the river is a heartless and unfair rejection of suggestions; After the Chu army crossed the river, Yu Zi suggested attacking while the Chu army was in chaos. Song Xianggong refused again on the grounds of unkindness and injustice. After Chu Jun attacked, Song Jun was defeated, and Song Xianggong was shot in the thigh, and died of injury the following year. At that time, the king of Chu became the overlord in name only.

In the northern state of Jin, he and Zhou Shi lived in the same family. Love for Ji threw national politics into chaos. In 636 BC, Zhong Er, the son of Jin Xiangong, succeeded to the throne of Jin under the escort of Qin Mugong for the sake of Jin Wengong. He reformed politics, developed economy, reorganized the army, won the trust of the people, stabilized the royal family and was friendly to Qin. He has high prestige in Wang Zizhong. In the twentieth year of King Xiang of Zhou (633 BC), the Chu army surrounded Shangqiu, the capital of the Song State. At the beginning of the following year, Jin Wengong led the troops to save the Song Dynasty, defeated the Chu army in the battle of Chengpu, and became the overlord.

After Jin Wengong's death, his son, Duke Xiang of Jin, succeeded to the throne and became the new monarch and overlord of the State of Jin. In 628 BC, taking advantage of Wen Gong's new funeral, he sent troops to attack Zheng. Duke Xiang of Jin sent troops to defeat the State of Qin in the Battle of Kan and captured three generals of the State of Qin. Since then, the State of Qin has repeatedly attacked the State of Jin. Duke Xiang of Jin still couldn't break the strategic blockade of the State of Jin, and kept his hegemony.

After his death, he sought to develop eastward and was blocked by Jin. Qin Jun was defeated in the Battle of Kan and the Battle of Peng Ya. Qin Mugong resolutely adjusted its national policy, turned to the west, annexed some Rongdi tribes and dominated Xirong.