Cheng Zhijie, real name Biting Kim, is a native of Dong'a, Jeju. Xiao Yong is good at war, weapons and horses. In the last year of the great cause, hundreds of people gathered to protect the township. He then followed Li Mi and rode for the Inner Army. At that time, there were 8,000 warriors in Li Mi's army, which belonged to the Four Horsemen and were divided into left and right, and the number was the internal army. It is said to be able to reach an army of one million. Cheng biting one of the four teams of Jin, his position in the army can be seen.
During the decisive battle with Wang Shichong, Cheng Yaojin led the Inner Horse Army to camp at the Northern Mountains, and Shan Xiongxin led the Outer Horse Army to camp north of Yanshi City. Wang Shichong attacked Shan Xiongxin, and Li Mi sent Cheng Jin and Pei Xingyu to help. Pei Xing was hit by a stray arrow and fell off his horse, and Cheng Biting Jin killed several people to rescue him and return to the camp. Wang Shichong's army killed all the way, and no one could stop them. Li Mi's army was defeated like a mountain, and Cheng Yaojin was also prepared to entrust Wang Shichong with heavy responsibilities. He bit Jin and consulted with Qin Shubao, "Wang Shichong is narrow-minded, and he often speaks wildly and swears to gamble, not a master who stirs up chaos anyway." The two then switched to the Tang Dynasty and served the Qin Dynasty. He was given the left third command of the Qin Dynasty. Breaking the Song Dynasty, capturing Dou Jiande, and demoting Wang Shichong, he was the commander-in-chief of the Zuo Yima Army. Every time he went to war, he was the first to enter the city. As a result, he was made the Duke of Suguo.
In the seventh year of Tang Wude, crown prince Jiancheng, jealous of the Qin Dynasty, in order to weaken the strength of the Qin Dynasty, made a promise to Tang Gaozu to seal Cheng and bite Jin as the assassin of Kangzhou. The Qin King's Mansion will eventually be degraded or punished, with the purpose of letting everyone leave Chang'an and empty the Qin King's Mansion.
Cheng Yaojin said to Li Shimin, the King of Qin: Now that His Highness's left arm and right arm have been cut off, how long can you keep it yourself? I swore to follow His Highness to the death and never to take up my post. It shows his loyalty. This was followed by the famous Xuanwumen coup d'état in history. Afterwards, the official bai crown prince Right Guard led, right Wu Wei grand general, sealed seven hundred households. He successively served as the governor of Luzhou and the general of the Left Army. With the eldest grandson Wuji and other generations to attack the history of assassination, he changed the title of Duke of Lu and granted the history of puzhou assassination. In the seventeenth year of Zhenguan, he was appointed as the Grand General of Zuo Tun Wei, the Inspector of the North Gate Tun Soldier, and the Great General of the JiaZhen Army.
In the sixth year of Yonghui (during the reign of Emperor Gaozong of Tang), he was a general of the Left Wei Dynasty. In the second year of Xianqing (during the reign of Emperor Gaozong), he was given the grand commander of the March of the Onion Mountain Road to attack Helu. QiDe died in the second year (during the reign of Emperor Gaozong). Posthumously awarded the Grand General of the Hussars, the Governor of Yizhou, and the burial of Zhaoling.