Disgraced former Education Department big wig Nino Napoli is among six people charged over their alleged involvement in a corrupt ring that swindled more than $6 million from Victorian state schools.

After a lengthy investigation, the Independent Broad-Based Anti-Corruption Commission has charged Mr Napoli, the alleged ringleader of the scam, with more than 150 criminal offences.

These include conspiring to defraud, knowingly dealing with and concealing the proceeds of crime and producing false documents.

Mr Napoli will appear before Melbourne Magistrates Court later this month alongside his cousin Carlo Squillacioti and former Keilor Heights Primary School principal Michael Giulieri.