Dayukou Town, belonging to Fengkai County, Zhaoqing City, Guangdong Province, is located in the northwestern part of Fengkai County, facing the He River in the southeast, bordering with Duping Town in the south, bordering with Cangwu County, Guangxi Zhuang Autonomous Region in the west, and adjoining Nanfeng Town in the northeast, the town's people's government is 56 kilometers away from the county town, with an area of 130.9 square kilometers in the administrative area, and a household population of 18,117 as of the end of 2019. During the Republic of China (R.O.C.) period, the territory of Dayukou Township belonged to Xi'an Township, the third district of Kaijian County.In October 1993, the township was abolished and established as Dayukou Township. As of October 2021, Dayukou Township has 1 community and 9 administrative villages under its jurisdiction; the township's people's government is located at No. 1 Longmen Street in Dayukou Community. In 2019, there were 2 industrial enterprises in Dayukou Township.