What is the shortest way from Hong Kong to luoding city, Yunfu, China?

You are suggested to pass the custom from Futian Port and enter Shenzhen first. Then take a taxi to Futian Bus Station. The cab fare is about CNY 30. There are several direct long-distance buses that can you to the destination. The schedules are 08:30, 10:00, 13:30, 14:30, 15:15 and 19:20. It costs CNY 139 per person.

I asked this question before the shortest way from Hong Kong to Luoding city, Yunfu, China but the train at Shenzhen has already full. I cannnot go from that way. Is any other shortest way to Louding city from Hong Kong? And please let me know how long it takes?

Since trains are full, buses can be your choice. I'd recommend you follow the advice of Potter to catch the long-distance bus. Wish you luck!