A woman who went on a racist rant on an Adelaide bus engaged in behaviour that 'cannot be condoned in a civilised society', a court has heard.

Stacey Marie Thomason, 31, pleaded guilty to an abusive language charge in Adelaide Magistrates Court over the verbal attack on a woman and her young child on a bus in November last year.

In sentencing Thomason to 200 hours of community service work on Monday, Magistrate David McLeod said the 31-year-old had directed a racial slur at an Asian woman and had also called her a 'f*****g c***' in front of other passengers.

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Stacey Marie Thomason was sentenced to 200 hours community service after a racist tirade in November

Ms Thomason appeared in court on Friday, receiving 200 hours of community service

Mr McLeod said the incident caused significant concern and embarrassment to those other passengers as well as the victim of the tirade.

'It cannot be condoned as appropriate behaviour in a civilised society,' he said.

The court heard the incident was the result of Thomason being drunk at the time and her anger over the Asian woman not paying when she boarded the bus with her child.

Almost immediately Thomason yelled at her 'you're not Australians'.

But defence counsel told the court that she was distraught and deeply sorry for her behaviour.

On the day in question, she had been returning from Kadina where she had gone to visit her three children who had been taken from her as a consequence of her being unable to properly protect them from her abusive partner.

Footage published on social media at the time allegedly showed Thomason swearing repeatedly at an Asian woman and her daughter on a public bus in Fullarton, Adelaide.

'Excuse me, they're not f******* people, they're not f******* Australian and she didn't pay for her f***ing ticket d******,' Thomason is allegedly heard saying.

'Literally, they’re f***ing invading our country, can’t you see it — f***ing Chinese people (are) f***ing everywhere.

Ms Thomason apologised outside court in June saying she was embarrassed and 'very sorry'

Ms Thompson yelled at an Asian mother and daughter on the bus that they 'weren't Australian'

Outside court on June 17, Thomason told reporters she was sorry and when asked if she was embarrassed, she said: 'Very much so'.

'It is not like me at all,' she said. 'I am a very nice person and I am not normally like that. At the moment no comment until my court (hearing), if that is okay.'

Thomason has already served a three month Transport Barring Order, and will now carry out 200 hours of community service.