 September 2006, "Dongguan city rapid rail transit construction planning" through the Provincial Development and Reform Commission, Department of Construction Review.December 2006, plan submitted to the State Development and Reform Commission, Ministry of Construction;

February 2007, the mayor of Dongguan, Li Yuquan announced provincial government approval;

In 2006, September 25 to 26, "Dongguan city rapid rail transit construction plan" expert review meeting was held, "Dongguan city rapid rail transit construction plan" was approved by the specialists.The experts recommended that the goal is brought down to about 60 kilometres and give priority to the development of line No.