After a close reading of the basic brushwork of Zheng Wengong Shangbei, people can find that it dates back to the characteristics of muddy brushwork and strong bones in the pre-Qin period, and absorbed Han Li's ups and downs, majestic, calm and refreshing posture. It can also be found that the dignified and simple official script has been replaced by the elegant and elegant regular script, which has traces of the transition of official script. For example, stippling is lengthened, instead of holding the pen with a pen. If you want to be vertical, you must be horizontal first. We can also find that his brushwork not only has the impression of a round pen formed by seal cutting, but also has the feeling of copying Fang Bi formed by the French side. Fiona Fang is versatile and changeable.