It is the first general contracting project of PSD system undertaken by Fangda Innotech since its establishment. With a total length of 36.33 km and a north-south "Y" shape, the main line starts from Guangzhou East Railway Station, ends at Panyu Square in the south. The branch line starts from Tianhe Coach Terminal Station in the north, and merges with the main line at Tiyuxilu Station, with a total of 18 stations are all underground stations. It is a strategic transportation line for Guangzhou to transfer its urban development focus to southern part of the city. Since its opening in 2005, the PSD system of Fangda Innotech has been used safely and stably for more than 17 years.