At present, there are three main opinions about the location of Chentangguan: First, the most mainstream view is the junction of Chentangzhuang Street and Chentang in Hexi District, Tianjin; Secondly, Guanwu Mountain in the northwest of jiangyou city, Sichuan, located at the end of Longmen Mountain, Chentangguan (also known as Chengtangguan) in the west of Wudu Town, is located at the junction of western Sichuan Plain and Longmen Mountain; Third, Yibin, Sichuan. Regarding the third statement, some people think that the specific location is about one kilometer down from the intersection of Minjiang River and Jinsha River, which is close to Dujiangyan.