First of all, Sima Qian, a great historian of Han Dynasty, listed Gong Yu as a summer book. It is considered that the book is a record of Yu himself or Yu's achievements in water control at that time. Its book was written about 2 1 century BC.
Secondly, scholars of Confucian school have always regarded Yu Gong as the handwriting of the sage Dayu since the Western Han Dynasty, and it was edited by the sage Confucius a thousand years later, so they praised it as a "classic" with absolute dignity. Even if later scholars realized its mistake, they would not change it easily. Otherwise, it is "blasphemy" and will lead to beheading.
Thirdly, Wang Guowei, a famous scholar in modern times, and Xin Qiji in modern times think that Gong Yu was written in the heyday of Western Zhou Dynasty's literature, martial arts, success and prosperity recorded in Taishi Zhi. This book was written between 65438 BC and 952 BC.
Fourthly, Kang Youwei in the late Qing Dynasty and Wang today think that the compilation is basically a Confucius who reads widely and travels around the world. He wrote it according to the geographical scope and production conditions in the Spring and Autumn Period. This book was written around 500 BC (Wang's History of Chinese Geography).
Fifth, Gu Jiegang, Hou Renzhi and others put forward that Gong Yu was written at the beginning of the third century BC, which was "about 60 years earlier than the era of Qin Shihuang's reunification" (Note on Gu Jiegang), and the author may be from Qin Dynasty.
Sixthly, Mr. Shi Nianhai recently proposed that Yu Gong was a work of the Warring States Period, and its writing date should not be earlier than 482 BC, that is, the year of Zhou 38 and 13, that is, the year when Wu, Jin and Huang Chi joined the League.