Abstract: Banqiao advocated "Ink should be the mirror of its time"and "Strive to be distinguished and outstanding ", so he was considered as opposite to the ancient rules and normal ways and given a fame of "strange"by the society's mainstream at that time. They did not know that the strangeness was following the time trend and close to the pulse of the times, so it has important practical meanings to discuss his "strangeness". Therefore, this paper not only discusses the reason, expression and influence of Zheng's "strangeness", but also illustrates the significance of the "strangeness"to his time.