The match starts at 7 p.m. at the 13,000-seat Rizal Memorial Stadium in Manila, the Philippines.
Both teams have won all previous matches in Group B. Vietnam beat Brunei 6-0 and Laos 6-1 while Indonesia had 2-0 victories over Singapore and Thailand.
Vietnam had a tough time in their latest encounter against Indonesia at the AFC U23 Championship qualifiers in Hanoi last March. They won with a last minute goal.
At this year SEA Games, Vietnam aim to win their first men's football gold ever.