What you want to ask is how to take the subway from Guangzhou South Railway Station to entrance A -A2 of Zhong Da International Textile City. You can take subway line 2 and then transfer to subway line 8.

According to Baidu map query, the ride process is as follows:

1. Walk from Guangzhou South Railway Station 100 meters, get on at Guangzhou South Railway Station, take subway line 2 (direction of Jiahe Wang Gang) for 8 stops, and get off at Changgang Station.

2. Get on at Changgang Station, take Metro Line 8 (Wanshengwei direction) for two stops, get off at Zhong Da Station (Exit D), and walk 840m to the entrance of Area A -A2 of Zhong Da International Textile City.