i am staying in east star hotel in Panyu, Guangzhou, how do i get Baima by metro - train

Are you refer to local Baima Clothing Wholesale Market? If so, the MTR cannot take you there directly. I suggest you walk from the hotel to Guantang West Bus Stop to take bus Panyu no. 17 or 53 (番禺17 or 番53) to Luoxi Station. At this MTR station, you can take subway line 2 to local Railway Station MTR Station. Get out from Exit G, and you can easily walk to the market.