Wu Chunlai, later with his mother's surname, changed his name to Wu Dalang, the word Wu Zhi, Lai Feng County people. His parents died when he was a child, and he raised his brother Wu Song with great hardship. To sell cooking cakes as a business, married to his wife Pan's Jinlian, originally lived in Qinghe County, and then moved to Zihe Street in Yanggu County.