The Court of Arbitration for Sport says that an appeal by defeated candidate Virach Chanpanich will be heard on March 25 and 26.
The court said Virach was seeking to overturn the election result from last October.
Incumbent Worawi, who is also an executive member of Fifa, defeated Virach 42-28 in a secret ballot that had been delayed for several months amid wrangling over election rules.
Virach lost to Worawi before in dubious circumstances in the previous election two years ago.
Fifa had warned the Thailand federation that it faced suspension if a club's attempted civil court action against Worawi's authority went ahead.
Worawi has been the FAT president since 2007. He joined Fifa's ruling board 17 years ago and was a long-time ally of former Asian football leader Mohamed bin Hammam.