The SEA Games champions will play Jordan, hosts Uzbekistan and Hong Kong in the group stage.
The round sees 12 teams divided into three groups of four, with the group winners advancing to the final round of qualifiers.
In Group A, India will face hosts Myanmar, Indonesia and Nepal. Chinese Taipei, Iran and hosts Palestine will join the Philippines in Group C.
In the final round, the successful sides will join Australia, the Democratic People’s Republic of Korea, the Republic of Korea, China and Thailand in two groups of four, with the top two teams from each group advancing to the play-offs.
The two winners from the play-offs will qualify for the 2020 Tokyo Olympics along with hosts and reigning Asian champions Japan.
The qualifiers will be played from April 1-9.
The AFC also held a draw for the U19 Women’s Championship Thailand 2019 Qualifiers Round Two on February 13.
The Vietnamese team are in Group B with the Republic of Korea, Iran and Lebanon. Group A includes Australia, Uzbekistan, Nepal and Myanmar.
As host of the group, Vietnam are considered favourites to secure a berth in the finals along with a strong the Republic of Korea.
Matches will be played on April 26-30.
The group winners and runners-up will join host nation Thailand, reigning champions Japan, the Democratic People’s Republic of Korea and China in the finals from October 27 to November 9.
