Cao Shuang was born in Pei Guoqiao, the son of Cao Zhen in the Three Kingdoms period. Because it was a small imperial clan, he walked into the palace carefully and solemnly. After Cao Cao ascended the throne, he was appointed assistant minister of Sanqi. Tired of moving the capital to the city gate, he added Sanqi as a constant waiter and was transferred to General Wuwei. When he was ill, he worshipped Cao Shuang as a general and took a vacation to celebrate Yue. Party acceded to the throne, and Cao Shuang as assistant minister, to Ann. Cao Shuang is modest and prudent. Later, he hired private individuals, used his power to engage in politics, embezzled property, and went his own way, sending troops to attack Shu, causing a large number of casualties and wasting lives. In 29 years, Sima Yi launched the Ping Ling Revolution and was convicted of treason.

Cao Shuang entered the palace since childhood and became friends with Cao Cha. After Cao succeeded to the throne, he was appointed as Dailang with Three Flags, then transferred to General, General with Three Flags, and later transferred to General Wuwei, and was deeply loved.

In 23 1 year, Cao Zhen died and Cao Shuang succeeded Shaoling. In 239 AD, Wei Mingdi Cao Cao was seriously ill, and Cao Shuang was appointed as a general, our time, and military commander at home and abroad to record history; He entrusted Cao Fang to Cao Shuang and Sima Yi and ordered them to unite to help the eight-year-old master. After Cao Fang succeeded to the throne, he added Cao Shuang as assistant minister, renamed Wu 'an Hou, and owned 12000 restaurants. Someone gave him a sword to walk in the temple, and he didn't want to go into North Korea. He praised Wu Ming, who was accompanied by Sima Yi and 3,000 soldiers.

At the beginning of Cao Fang's reign, Cao Shuang asked Sima Yi for advice on everything and dared not specialize. Sima Yi also regarded it as the heart of the country and made it polite. Later, Cao Shuang listened to the counsel of Ding Mi, a confidant general, and respected Sima Yi as a teacher, taking this opportunity to cut off Sima Yi's relieving. At the same time, Sima Yi's close friend Jiang Ji was promoted to Qiu. He took the opportunity to oust Jiang Jiyuan as viceroy and appointed his second brother Cao as viceroy. Later, the captain of the intermediate base and the backbone of the five battalions of the imperial army were cancelled, and these two battalions were placed under the direct command of Cao. Cao Xun, a general of Wu Wei, led the imperial army into Wu; Cao Yan is a leisure rider. At this time, the Cao Shuang brothers completely mastered the imperial army of the capital: on the other hand, Sima Yi's vacant room was further compressed politically, and cronies were appointed to hold important positions in North Korea, such as Ding Mi, Yan He and Deng Ben as ministers, and Yan He was responsible for selecting officials; Appointed He Nanyin and Bi Gui as viceroy, governing both inside and outside Beijing; At the same time, tell the ministers to report to themselves first, and then ask Sima Yi to weigh the weight. Later, they gradually stopped asking Sima Yi about the imperial edict and began to do things themselves.