DRUG detection dogs helped police arrest 18 people in a two-hour period as people filed into the Big Pineapple Music Festival.
Sunshine Coast Tactical Crime Squad officer Troy Pukallus said between 1000 and 2000 people were approached by drug detection dogs just inside the entrance on Saturday.
They were working from between about 12.30pm and 2.30pm.
Senior Sergeant Pukallus said 18 people were charged with 21 drug offences in the period.
He said given reports from other music festival around the country, the number was not surprising.
"It's a continuing challenge for police to address drug use at these sorts of events," Snr Sgt Pukallus said.
He said there were also a few drug arrests later in the night but in general the crowd had behaved very well.
Queensland Ambulance Service Maroochydore senior operations supervisor Paul Boyd said paramedics tended to a few people but there were no cases of any note.
"There were no more cases than (we) previously expected at the event," Mr Boyd said.
Update your news preferences and get the latest news delivered to your inbox.