An extra-time goal from Apiwat Chaemcharoen gave the South East Asian side a 5-4 victory and a place in the final for the second time in their history.
They reached the final on home soil in 2008 but were soundly beaten by Iran 4-1.
They will now face the 2006 champions Japan in the final the samurai blue booked their place in the final also on Wednesday with a 3-0 comfortable win over Australia.
The final and the third-place playoff will be played on Friday at Al Wasl Stadium in Dubai.
