Queensland's attorney-general has been urged to appeal a "manifestly inadequate" sentence imposed on the perpetrator of a fatal one-punch assault.

Shadow Attorney-General Ian Walker said he would write to Yvette D'Ath following a decision handed down to Ariik Mayot in the Brisbane Supreme Court on Monday.

Family members of Ariik Mayot leave the court after he was sentenced. Credit:Jorge Branco

"Mayot's sentence for the one-punch killing of Ipswich man Lindsay Ede is manifestly inadequate and does not meet or reflect community expectations and standards," he said in a statement on Tuesday.

Chief Justice Catherine Holmes sentenced Mayot to four years' jail after he pleaded guilty to fatally striking the 56-year-old in June 2015.