More than 50,000 fireworks and light displays, including a one-kilometre rainbow, will make Tuesday night the biggest New Year's Eve show Brisbane has ever seen.

Ringing in the next decade, about 40 Skylighter Fireworx staff will work with eight tonnes of fireworks across nine barges to make the night sky sparkle at 8.30pm and again at midnight.

The fireworks will feature new effects like Italian style farfalla shells, snowdrop shells and blinking stars.

The barges will be at Eagle Street, Howard Smith Wharves, Portside Wharf and, for the first time, the Regatta Hotel in Toowong.

Brisbane City Council deputy mayor Krista Adams said she hoped the event would unite everybody over the Christmas season as they prepared for the new decade.