The one-minute long clip shows cast members on the E4 reality show enjoying a boozy night-time carousel ride.
Notable moments from the trailer include Spencer Matthews cuddling up to co-star Louise Thompson, Oliver Proudlock riding Jamie Laing like a horse and Millie Mackintosh playing seductively with a ribboned pole.
Made in Chelsea will welcome new cast members Sophia Sassoon, Andy Jordan, Sam Cussins, Stevie Johnson and Ianthe Rose Cochrane-Stack for its fourth series.
Teasing the show's return last month, Matthews told Digital Spy that he believes the new series has the "best opening episode yet" and will feature "a lot of emotions flying high".
It has been confirmed that Made in Chelsea will air in the US on the Style Network from November.
The show begins again in the UK later this autumn.
Watch Spencer Matthews chat Made in Chelsea and more with Digital Spy below: