In preparation for the wedding, 180 rooms in the resort have been fully booked, according to HK01 newspaper.
The cheapest price for a room at the resort is about $730 a night, while apartments with two or three bedrooms cost about $1,600-2,600.
The couple is said to be spending about $6.4 million on the wedding.
A total of 120 security personnel and local police have been mobilized for the event.
Photos of the couple's pre-wedding shoot at the six-star resort have gone viral in recent days, showing the bride-to-be in a white backless wedding gown.
Ho is an entrepreneur and socialite, while Dou is a well-known actor in China who has starred in several popular dramas and films.