Liu Che was the son of Emperor Jing and his wife. He was granted the title of King of Jiaodong in 153 BC. In 150 BC, Prince Li Crown Prince was deposed and made Crown Prince. In 141 BC, he ascended the throne at the age of sixteen. At the beginning of his accession to the throne, he appointed Confucian scholars such as Zhao Wan and Wang Zang to implement the New Deal, which angered his grandmother, Empress Dowager Dou, who was fond of Huang Lao's studies. In 139 BC, Zhao and Wang committed suicide in prison, and the New Deal was frustrated. When Doutaihou died in 135 BC, he truly took control of the government.
In terms of internal affairs, he appointed Doctors of the Five Classics, established the Imperial Academy, and ordered the prefectures and state inspectors to promote filial piety and integrity, making Confucianism official orthodoxy; he issued favor edicts to weaken the kingdom, and established thirteen prefecture governors to supervise the localities; he appointed Sang Hongyang and others to promote the salt and iron official business, and evened the losses, and took back the minting power to mint five baht coins. Externally, he ordered Qing and Huo Qubing to attack the Xiongnu in the north, sent Zhang Qian as envoy to the Western Regions, pacified South Vietnam, managed the southwestern barbarians, and destroyed Wei's North Korea. The territory of the Han Dynasty was unprecedentedly vast.
In his later years, he prayed for immortality and went on conquests year after year. As a result, the treasury was empty and civil unrest broke out. In 91 BC, Crown Prince Liu Ju and Queen Wei Zifu committed suicide during the witchcraft disaster. In 89 BC, he issued the Luntai Edict to express his repentance and turn to recuperate. In 87 BC, he established his youngest son Liu Fuling as Crown Prince, and ordered Huo Guang, Jin Ridi, Shangguan Jie, and Sang Hongyang to jointly assist the government. Then he died of illness in Wuzha Palace and was buried in Maoling. He reigned for fifty-four years.
Emperor Wu of the Han Dynasty was one of the most influential emperors in Chinese history. He implemented the system of favors and governors to consolidate central power, took Confucianism as the official orthodoxy, attacked the Xiongnu in the north, opened up the Western Regions, and expanded the southern borders, laying the foundation for the basic pattern of China's territory and culture. However, he was overjoyed in his achievements and was aggressive in military affairs. He also had a superstitious belief in gods and immortals and appointed cruel officials, which led to "waste at home and the household registration was halved." In his later years, he even caused the disaster of witchcraft. The timely turn of the Luntai imperial edict saved the Han Dynasty from falling into the trap of Qin dynasty.