What bus should I take from sanxiang town, Zhongshan to downtown Zhongshan?

Your question doesn't seem specific enough. I don't know where you come from.

I can only give you a general answer.

1, bus 1 1, 66, 39.

Route 1 1: Hua Fu Railway Station, West Post Office, Commodity Market, Fuzhou Hotel, Hua Fu Hotel, Zhongshan No.1 Bridge, Transportation Bureau (Chinese Medicine Hospital), Yuelai New Village, Sanlian Factory, Highway Bureau Toll Collection Office, Vanke City Landscape, South Market, South Hospital, Hengmei, Chengnan Passenger Station, Changhuan, Thyssen Elevator Factory, and so on. Baixi. Luwu Lake Villa. Li Xi. Shenwan. Shenwan toll station Xingwei shoe factory. Madou Huangjiacun. Baishi market. Traffic police team three. The second industrial zone. Daji restaurant Sanxiang market. Wu. Agile. Baoyuan shoe factory. Sanxiang Shagang. Tai Po. Xiangquan hotel Hot springs. Yongmo. Gan Tang. Xiao.

No.66 Road: Hua Fu Railway Station, West Post Office, Commodity Market, Fuzhou Hotel, Hua Fu Hotel, Zhongshan No.1 Bridge, Zhongshan Sports School, Dali Garden, Jinghua Hotel, Social Security Bureau, Local Taxation Bureau, Stadium, main entrance of Gymnasium, Sun Wen Park, Pok Oi Hospital, Military Division, Second-hand Car Trading Center, China-Hong Kong English Middle School Department, Changshuishui, Guangdong Pharmaceutical University, Westar Company, Li Xiang Company, Fifth. Gui payment office. Southern Guangxi. Sanxiang logistics center. Sanjia shoe factory. Sanxiang Shagang. Baoyuan shoe factory. Agile. Wu. Pinglan. Pingtung market. Sanxin school Nanlong road. Spring forest villa.

Route 39: Zhangxi Harbor Restaurant, Dongming Garden South Station, Daxin Xinduhui, Sancun, Shi Qi Vocational School, People's Hospital, Holiday Plaza, Zhongshan Library, Local Taxation Bureau, Stadium, main entrance of Gymnasium, Sun Wen Park, Aibo Hospital, Military Division, Second-hand Car Trading Center, China-Hong Kong English Middle School Department, Changmingshui, Guangdong Pharmaceutical University, Weida Company, Li Xiang Company, Wuguishan Industrial Zone, etc.

2. Green A 1 and Gongbei-Zhongshan shuttle bus.

Among them, the green A 1 competes with 1 1 for business, with almost the same route and similar price. The bus from Gongbei to Zhongshan is faster and of course more expensive.