More than 200 people were charged with drug offences on New Year's Day - 173 at one music festival alone, police said.

A police operation at the Field Day Music Festival at The Domain on Monday lead to six arrests for allegedly supplying drugs, and 167 people being charged with possession.

More than 26,000 people attended the festival on New Year's Day. Credit:Sahlan Hayes

Police said one 22-year-old man was allegedly found with 138 MDMA pills.

He was charged with supply prohibited drugs, deal in the proceeds of crime and resist arrest, and is due to appear at the Downing Centre Local Court on February 14.