"Meteorology in the Prosperous Tang Dynasty" is the product of the specific social and historical conditions in the Prosperous Tang Dynasty. More than forty years from Kaiyuan to Tianbao were the heyday of the feudal society in Tang Dynasty and China. After Emperor Xuanzong of the Tang Dynasty ascended the throne, a series of effective reforms were carried out, which made the whole country show unprecedented prosperity rapidly. On the basis of the material wealth created by the working people since Zhenguan, the social and economic development, strong national strength, stable people's lives and relatively enlightened politics in the early Tang Dynasty. In addition, Xuanzong reformed the imperial examination system and advocated the selection of scholars by poetry and fu, which provided greater convenience for the intellectuals of the cloth landlord class to board the political stage.