The real historical prototype of Wu Dalang is Wu Dalang, and the prototype is Wuzhi, the county magistrate of Qinghe County.

Wu Dalang is one of the characters in The Water Margin. She is ugly and short, but she has a beautiful wife. Later, not only did she have an affair with an adulterer, but she also killed Wu Dalang. However, in reality, Wu Dalang was the county magistrate of Qinghe County in the early Ming Dynasty. He was an official with integrity all his life, but he suffered injustice because of an accident.

Wu Song, the two sons of the Wu family in Water Margin, is eight feet tall and Wu Dalang is less than five feet tall. At that time, one foot was converted to about 3cm now, so Wu Dalang should be about 15cm, but Wu Song is about 2 meters 4. Therefore, it should be exaggerated to say that Wu Dalang is less than five feet tall, highlighting his smallness and cowardice.

However, in reality, Wu Dalang is a handsome man with outstanding literary talent. According to the excavated bones, the height of Wu Dalang should be about 1.78 meters, which is not bad even now, not to mention that the average height is not as good as that of modern ancient times.