John Setka at an early court appearance. Credit:Joe Armao

Prominent Victorian union leader John Setka will plead guilty to harassing a woman, but a charge of recklessly causing injury has been withdrawn by police prosecutors, along with 30 other charges.

Setka, 54, the Victorian secretary of the Construction, Forestry, Maritime, Mining and Energy Union, appeared before Melbourne Magistrates Court on Thursday as his lawyer indicated his client would plead guilty to two charges at a hearing next month.

He is to plead guilty to one count that on October 29 last year he used a carriage service to harass, and one of persistently breaching a court order, over offending earlier this year.

Among the 30 charges withdrawn by police prosecutors was one count of recklessly causing injury to the woman, who cannot be named for legal reasons.