The 43 year-old surprisingly picked up the maiden national belt of his career with a unanimous decision win over countryman Kane Watts.
Green now moves on to a potential rematch with Anthony Mundine a decade on from their first meeting in Sydney.
Mundine won the convincingly back in 2006 at super-middleweight, although any second fight is set to be negotiated at a higher limit.
The boxers are rumoured to be making upwards of $5m dollars each once they sign on the dotted line to meet again later this year.
In the co-feature, Czar Amonsot stopped Christian Lopez in three rounds, whilst talented brothers Andrew and Jason Moloney both improved their undefeated records to 9-0.
Jason won on points against Jeffrey Francisco, whilst Andrew wasted no time getting Markquil Salvana out of there with a first round knockout.
Full results (records updated):
10 – Super Lightweight
Czar Amonsot 32-3-3 TKO3
Christian Lopez 20-4-1
10 – Australian Cruiserweight title
Danny Green 35-5 UD
Kane Watts 18-3
6 – Super Bantamweight
Jason Moloney 9-0 UD
Jeffrey Francisco 14-2-1
6 – Bantamweight
Andrew Moloney 9-0 KO1
Markquil Salvana 11-2
10 – Cruiserweight
Mark Flanagan 20-4 KO2
James Langton 10-6
6 – Super Middleweight
Jayde Mitchell 9-1 UD
Paul Morrison 6-3
4 – Super Lightweight
Brent Dames 3-2 SD
Cameron Eyes 6-1