The demonstration was organised in response to the BBC programme Panorama’s investigation into Robinson.
Fans of the ex-English Defence League leader, whose real name is Stephen Yaxley-Lennon, started gathering at Media City at around 11am this morning.
In the carpark, they erected a large screen which will air Robinson’s own documentary Panodrama, which he has said would expose “the truth”.
He told the crowd: “Evidence of a corrupt media is that not one single journalist in Britain has reported on Panodrama.
“We are constantly battling a media that lies.”
A number of those attending the protest wore high-vis waistcoats with “Free Tommy” printed on the back, as well as England flags draped around their shoulders.
Others broke out into chants of, “Oh Tommy, Tommy” as they waited for Robinson to arrive on stage.
One organiser told supporters not to cause trouble with anti-fascist protesters that have gathered around 300 metres away from the main crowd.
They said: “We are not tattooed thugs.
“We’re the British public who want to know the truth.”
Anti-Robinson protesters held placards with slogans such as “Stand up to racism” and “Stop the fascist Tommy Robinson”.
Extra police officers have also been drafted in to keep the peace, with temporary metal barriers placed around all the BBC buildings.
The Media City branch of Prezzo had a sign on the door which said: “This restaurant is closed for the safety of our customers and staff due to high numbers being expected to the area.”
Robinson’s protest was condemned by the National Union of Journalists (NUJ) and BECTU, unions which represent BBC staff.
In a joint statement, the unions said: “Intimidation, threats and violence carried out by far-right protesters systematically targeting the media, especially photojournalists, are becoming more frequent and we will always call out this behaviour and report criminal activity to the police.”