Li Zicheng was born in August in the thirty-fourth year of Wanli (1606). Zicheng was born in Licun, 200 miles west of Mizhi River, more than 60 miles away from his old parents (both places are now Hengshan Mountain). Li Zicheng's ancestral home is Lijia Station in Mizhi County. There is a village called Li Qianji Village in Dianshi Town, Mizhi County, and the locals also call it Lijia Station. It has been handed down from generation to generation in the village and is a descendant of Li. Li Zicheng's ancestors moved from Taian, Gansu to Lijia Station (Xixia Liqianji Station) in Mizhi County, Shaanxi Province. His grandfather Li Hai was forced by life and moved to Changmao Village (now Hengshan County) in Mizhi County. People say that Li Zicheng "was born in Licun and grew up in Changmao Village", which refers to this matter. "Examination of Li Zicheng Nationality in Mizhi County" records: "I was born in Riemel, Tai 'an County, and I live in Beixiang, 70 miles away from Lijia Station in the south of the city, in Haihui Sigou. "
"Mizhi County Records" records: "Mizhi Li's surname is divided into Tai 'anli Corner Li and Yonghe Shilou Li. One is Tai 'anli Dimethyl, and the Li Zicheng family belongs to Tai 'anli Dimethyl, who migrated from Tai 'anli, Gansu before the Ming Dynasty. Another plum moved to Mizhi from Yonghe and shilou county, and the two plums are not from the same family. The Li family in Tai 'anli is a large family distributed in Mizhi urban and rural areas. "
Li Zicheng's family, Tai 'anli Dimei, migrated from Tai 'anli in Gansu to Lijia Station before the Ming Dynasty. And this Li family post station is the place where Tangut Tuoba Xiaping lived after moving from Gansu to the east.
Teenagers in Li Zicheng like guns, horses and clubs. After his father died, he went to the post station in charge of delivering court documents in the Ming Dynasty as a postman. There are many disadvantages in the post station system in the late Ming Dynasty. In the first year of Chongzhen (1628), Ming Sizong reformed and simplified the post office system. Li Zicheng was fired for losing his official documents, went home unemployed and was heavily in debt. In the winter of the same year, Li Zicheng was sued by Ai to the Mizhi county government because of her inability to repay her debts. County magistrate Yan Zibin "travels around the city mechanically, and there is no doubt that he will die." After being rescued by relatives and friends, he killed his creditor Zhao Ai at the end of the year. Then, Li Zicheng killed his wife for adultery with Han Jiner, a villager. Two lives were at stake, so the government had to ask and the lawsuit had to die. So in February (1629), Li Taichong joined the army in Ganzhou, Gansu (now Ganzhou District, Zhangye City). At that time, Yang was appointed as the company commander of Ganzhou, and Wang Guodong was appointed as a participant. Li Zicheng was quickly promoted by the kingdom to the general manager of the army. In the same year, in Yuzhong (now Yuzhong County, Lanzhou, Gansu Province), due to the problem of arrears of military pay, the warring vassal States and local county magistrate were killed and a mutiny was launched.