Best and fastest way to go zhongshan from guangzhou baiyun airport?

You can take the direct long-distance bus at Guangzhou Baiyun Airport. The pick-up point is Gate-A7 Arrival Lobby and it will take you to Seasons View Executive Hotel in ZS city. There are lots of schedules every day. The ticket fare is CNY 70 per adult and it takes around 150min.

It is the most convenient way to travel by direct intercity bus; however, it is not the fastest way. Apart from the way above, you can take subway line 3 to Jiahewanggang, where transfer to line 2 to Guangzhou South Train Station. The whole trip takes around 65min. At the south station, you can take a high-speed train to your destination in around half an hour.

Thanks all for the tip! The service staffs here are rude and no clear info from them but im taking the bus at A7!