Police were forced to block the entrance to the Spring Street building and had to tackle a few protesters angry with the Labor government’s changes to the industry.
Earlier, one woman fainted in front of the rally and, as paramedics treated her, a few men ran up the steps.
Police stopped them but dozens soon joined in hurling abuse at the government.
Police linked arms on the steps of Parliament to keep the taxi protesters at bay.
Police linked arms on the steps of Parliament to keep the taxi protesters at bay. Photo: Blake Johnson/Twitter
One woman started screaming and lying on the ground.
Protest organisers called for calm and others started singing the national anthem.
After about 10 minutes the crowd moved back down the steps.
Parliament is due to debate new legislation for the taxi industry including setting up a $2 levy on all trips.