An estimated amount of $300 million is needed to repair Victoria's state schools before it becomes utterly worthless in decayed state, Herald Sun reported.

Australian Principals Federation president Chris Cotching told Herald Sun that run-down schools have become a huge problem after years of neglect by governments that chose to spend for mostly urgent repairs, neglecting the rest of school items that also needed attention and fixing.

Herald Sun documented over 100,000 items needing immediate repairs at 1594 state schools in Victoria. This translates to repair bills that exceed the total capital investment the schools received during Labor's decade in power.

"Schools have been left to run down and down and down. Principals and teachers now have to put up with things that are shoddy, dangerous and an occupational health and safety concern," Cotching said.

Education Minister Martin Dixon said the total maintenance backlog in his department is in excess of $300 million. He said the government would immediately boost maintenance spending this financial year to $87.5 million, which is $28.5 million more than the Brumby government spent in its last year in office, all because of repair works that have piled up over the four years.