The SAR government has added the UK to a list of high-risk countries, which would make travellers from there take Covid-19 test within 72 hours before boarding flights to Hong Kong.
They must also have a hotel booking for at least 14 days here where they are supposed to stay in quarantine.
The restrictions will take effect next Thursday.
Passengers who fail to comply or provide inaccurate or misleading information face a maximum six months' jail sentence and HK$10,000 fine.
Currently, passengers from 10 countries are already subject to these rules. They are the Philippines, Indonesia, India, Pakistan, Bangladesh, Nepal, Kazakhstan, the United States, Ethiopia and South Africa.
The news comes after it was reported that the number of new Covid-19 cases in the UK have soared in recent days, with authorities there reporting more than 6,000 new cases on Wednesday.
Meanwhile, Hong Kong reported seven more coronavirus cases on Thursday. Three were local cases linked to previous infections, and the rest were imported cases.
The total number of confirmed infections in the city now stands at 5,056.
Last updated: 2020-09-24 HKT 16:16