Three teenage girls have been charged over the stabbing of a 38-year-old man who was found covered in blood at a Melbourne train station.

The man was found by Protective Services Officers at Sunshine train station about 9.45pm on Saturday with non-life threatening head injuries and stab wounds.

The victim fled from the PSOs, running along Hampshire Road before collapsing on the nature strip.

Three girls, two aged 14 and one 17-year-old, face charges including intentionally and recklessly causing injury and assault with a weapon.

The trio is bailed to appear at a children's court at a later date.

AAP