As planned, after gathering at the Vietnam Youth Football Training Centre in Hanoi, Vietnamese players will have health check-ups on May 16.
Before leaving for Indonesia, Vietnamese footballers will join a training course in China from June 15-25.
At the AFF U-19 2018, Vietnam will play in Group A with Thailand, Singapore, Laos, the Philippines, and host Indonesia.
Group B includes Malaysia, Myanmar, Timor Leste, Cambodia and Brunei.
In the qualifying rounds, U-19 Vietnam will play with Thailand on July 1, the Philippines on July 3, Laos on July 5, Indonesia on July 7 and Singapore on July 9.
Earlier, Vietnamese players took part in the Suwon JS Cup 2018 in the Republic of Korea on April 18-22 in preparation for the AFF U-19 Youth Championship.