New South Wales Labor general secretary Kaila Murnain has been suspended in the wake of explosive revelations at an anti-corruption hearing.

It comes after reports today that the embattled political powerbroker refused to quit her post despite mounting pressure.

Tonight, the state Labor leader Jodi McKay said she was "appalled" by the evidence heard by the Independent Commission Against Corruption over the past three days and was intervening.

"Tonight I am taking steps to clean up the mess at ALP head office," Ms McKay said.

"I have therefore asked the party officers to convene a meeting tonight to suspend Kaila Murnain as General Secretary, as I no longer have confidence in her judgment.

"Pat Garcia will act in the role of General Secretary."