i want go to this address by metro ( Liangsha Road, Zhongluotan Town, Baiyun District,Guangzhou )

I'm afraid no subway leads to this address. As I am not sure about your departing place, here is just my general suggestion:
1. At GZ Bus Station near local main railway station, you can take Guang-Cong bus line 1 to Zhongluotan Town Lukou.
2. There are direct buses from Tianhe Bus Station to the town.

Upon arrival at the town, you can ask local people about the directions to the address, by walking or taking a taxi.