Greens MP Michael Berkman has been referred to the ethics committee after joining in the student strike for climate change while wearing a T-shirt with a political slogan at the Queensland Parliament.

Mr Berkman was at the strike on March 15 wearing an anti-Adani shirt in support of Wangan Jagalingou traditional owners.

Queensland Greens MP Michael Berkman on the balcony in Parliament while wearing an anti-Adani T-shirt.

Speaker Curtis Pitt said Mr Berkman was in the crowd and then was seen on level B of the porte-cochere - an area in the Parliament's precinct near QUT.

"[He] was seen clapping and waving to the crowd, had two children with him, both who had the Greens signs displayed," he said.