- DuYu was one of the outstanding hermeneutist in Jin Dynersty.
- It was found that the development of Shu was in a continuum, from Cancong, Baiguan, Yufu to Duyu.
- After Cancong, Boguan and Yufu, Duyu was the fourth king who founded Shu state on the Chengdu Plain.
- At the end of Shang dynasty and the beginning of Zhou dynasty, the ancient Shu entered the Duyu dynasty.
- The production area of walnut is in the south of Lingqiu County, like Duyu Town, Xiaguan Town, Shangzhai Town, Hongshileng Town.
- DuYu has not only an important status in the fields on Confucian researches, but also has a great deal of Confucian literary ideas.