You could take subway Line 3 from Baiyuan Airpor to Zhujiang New Town directly.

Thank you, Shan. The reason why I asked the question was, reception desk of the hotel where I have booked the room in Zhujiang new town gave me a message that - take subway line 3 from airport, then get down at Linhexi, catch another line 3 in a different direction, get down at Zhujiang new town. Please clarify.

Oh yes, since subway Line 3 will be divided into two branches from Tiyue XiLu, the next stop from Linhexi. You should get off at Linhexi and transfer to the one running to Panyu Square. It is easy to finish the transfer in the subway station. You'd better see the Guangzhou subway map, which clarify the routes clearly.

Thank u, once again