Among the five are Tongan students Ioane Moala and Manu Makuhoa.
Fijivillage reports the students pleaded guilty to a charge each of failure to comply with order under the Public Health Act.
They were drinking alcohol on 11 April in a flat at Laucala Bay in Suva.
The Chief Magistrate has ordered the 5 University of the South Pacific students to pay a fine of $200 each within a month and failure to pay the fine will result in the 5 in spending 20 days in prison.
Chief Magistrate Ratuvili also released each student on $500 bail.