Striker Cong Phuong opened the scoring in the 12th minute of the first half after receiving a pass from his teammate Van Toan and scored the second goal nine minutes later.
Vietnam’s third goal came in the 54th minute of the second half, putting its rivals under heavy pressure.
Four minutes later, Cong Phuong successfully kicked the ball into the net, completing his hat-trick.
The 5th goal was scored by Van Toan in the 60th minute and the 6th by Lam Ti Phong in the 87th minute.
Taiwan’s only goal was made by Wang Li An in the 89th minute.
The Vietnamese squad led by French coach Guilleme Graechen was placed second only to Australia which claimed a convincing 7-0 victory against Hong Kong (China).
U19 Vietnam will meet Hong Kong on October 5, and Australia later. The top winner of Group F will enter the final round, which is scheduled for Myanmar next year.