A police operation has been launched in response to recent violence on Gold Coast buses.

Operation Caritas began on Friday night, seeing both uniform and plain clothes police travelling on coast buses to crack down on anti-social behaviour and violence.

Acting Superintendent Glenn Allen says the operation has been commenced as a result of concerns expressed by Surfside Buslines in relation to the poor behaviour of some passengers towards other passengers, and also an increasing number of assaults on their bus drivers.

He says the operation will be ongoing, seven days a week, as long as there is a need for it.

Resources will be allocated depending on the route and time of day.

"At any one time there will be up to a dozen officers involved," says Mr Allen.

He says these police will be observing behaviour at transit centres as well as boarding buses to randomly check passengers.

"They'll also be asking the bus drivers what's happening, and if there've been any particular problems with any particular passengers, and those passengers will be dealt with by either being asked to leave the bus or if it's serious enough will be taken into custody and arrested.

"It's a warning by us to anyone getting on the buses that we could be anywhere anytime and if they are going to behave in an unruly manner, well they'll be dealt with appropriately."

He adds that the operation has already yielded results.

"There's been some people asked to leave the buses, there hasn't been any specific arrests at this stage, and I'm pleased to say the people who were spoken to by police on the buses responded appropriately.

"We've also received good feedback so far, we've met with the bus drivers and we met with the bus company themselves, and security officers, and they're all very pleased with it. I think it makes them feel more secure in the fact that they can go about their lawful business properly without worrying about people abusing them, assaulting them, or swearing at them."

If you are a bus passenger and see someone being assaulted, police urge you to call 000 immediately.

Non-urgent incidents should be reported to Policelink on 131444 or alternatively in person at the local police station or police beat.