Up to an extra 300 security officers are being hired at Chek Lap Kok to carry out additional searches on aircraft and baggage following the terrorist attacks.
The airport's aviation security general manager, Sidney Chau Foo-cheong, said the extra manpower was needed after airlines had requested the extra precautionary measures.
'We have 2,700 staff on duty every day,' Mr Chau said. 'They have already been asked to cancel their holidays. We've asked them to increase vigilance and step up patrols at the airport.
'We're hiring more staff. We need an extra 200 to 300 staff to carry out extra services for airlines over the next few days.'
The additional cost will be paid by airlines.
As well as X-ray screening of hand luggage, Mr Chau said some airlines had requested their officers to conduct a hand search on baggage and even body searches on passengers leaving for Europe.
Mr Chau expected more airlines to make the same request once flights between Hong Kong and the US fully resumed.