Xu Guangqi compiled the "Agricultural Policy Encyclopedia", which covers various important aspects of agricultural science and technology and farmers' lives such as farmland water conservancy, soil fertilizers, seed selection and grafting, pest control, improved farm tools, food processing, silk weaving and cotton spinning, etc. They all conducted in-depth and detailed discussions on the level of understanding that could be achieved at that time, put forward their own opinions, and criticized various backward ideas and methods that hindered the progress of production technology. He pinned his desire to enrich the country and strengthen the army and his deep sympathy for the peasants in this epoch-making masterpiece. "The Encyclopedia of Agricultural Administration" is the first book in history to comprehensively review the experience and lessons of "agricultural administration" from the perspective of national policy, pay special attention to reclamation, water conservancy, and wasteland administration, and systematically summarize my country's classical agricultural science. These are his far-reaching achievements. A place that surpasses its predecessors. It is conceivable how difficult it was for such a huge work to be written by a frail and frail old man who was over sixty years old. Only with his deep love for his country and nation and his persistent pursuit of science, as well as his perseverance and perseverance, can this outstanding scientist leave such a rich legacy to future generations.

Although there are some shortcomings in "The Complete Book of Agricultural Affairs" due to the limitations of the conditions of the times and the limitations of the level of understanding, as well as the organizer's failure to fully understand Xu Guangqi's writing intention, the flaws cannot be concealed. As time goes by, As time goes by, the great scientific value contained in this work has become more and more clearly understood by the world. Since the publication of Ping Lu Tang's version of "Nong Zheng Quanshu", this book has been published repeatedly. So far, there are no less than ten versions of "The Complete Book of Agricultural Affairs", which has played an important role in guiding ancient agricultural production in my country. As a milestone in the history of the development of traditional agriculture in my country, it will always shine brightly.