The fixture will be the new coach of Philippe Troussier’s first match in charge of Vietnam’s U19 squad.
Previously, the coach revealed a list of 36 players who have been selected to take part in a training camp in preparation for the 2020 AFC U19 Championship qualifiers.
The clash between Vietnam and Thailand is set to take place at 18:30 on October 10.
Elsewhere in the tournament, the under-19 sides from the Republic of Korea and Uzbekistan are set to play each other at 15:30 on the same day.
The winners of the two matches will advance to the final where they will play each other.