Xu Guangqi pinned his yearning for Qiang Bing, a rich country, and his deep sympathy for farmers on this epoch-making masterpiece. The Book of Agricultural Administration comprehensively reviewed the experience and lessons of "agricultural administration" from the perspective of national policies in history, paid special attention to reclamation, water conservancy and drought relief administration, and systematically summarized China's classical agricultural science. These are the places where he far surpasses his predecessors. It is hard to imagine that such a masterpiece was written by a sickly old man over sixty. Only with his love for the country and the nation, his persistent pursuit of science, and his perseverance and perseverance can this outstanding scientist leave such a rich legacy to future generations.