1 2 3 4 5 6 7 8 9 10 The seeding of the first and second group stage teams from Iraq, Syria, Jordan, Bahrain, and Lebanon was determined by draw.
1 2 3 4 5 The identity of the first group stage teams from Turkmenistan and Bangladesh, and the first and second group stage and standby teams from Philippines was not known at the time of the group stage draw.
1 2 3 4 5 6 7 8 9 10 The seeding of the first and second group stage teams from Vietnam, Indonesia, Myanmar, Philippines, and Singapore was determined by draw.
↑ The standby teams would replace a team from the same association which played in the AFC Champions League qualifying play-offs and advanced to the AFC Champions League group stage. There were no standby teams from Bahrain (for Malkiya)
1 2 3 4 Teams from Iraq are not allowed to host their home matches in their country due to security concerns. This ban is currently under review by AFC.[6]
↑ The Al-Quwa Al-Jawiya v Malkiya match on Matchday 4 was rescheduled from 13 March to 17 April to allow Iraqi teams to play at home should their ban be lifted by the FIFA Council in March 2018.[7]
1 2 The matches between Manama and Al-Jaish were reversed from the original schedule.
1 2 3 4 5 6 Teams from Syria are not allowed to host their home matches in their country due to security concerns.
↑ The Al-Zawraa v Manama match on Matchday 3 was rescheduled from 6 March to 16 April to allow Iraqi teams to play at home should their ban be lifted by the FIFA Council in March 2018.[7]
↑ The Aizawl v Bengaluru FC match on Matchday 1 was rescheduled from 7 March to 5 April to allow Bengaluru FC to play in the 2017–18 Indian Super League finals.[8]
↑ The FLC Thanh Hóa v Global Cebu match was brought forward from 13 February to 10 February.
↑ The Tampines Rovers v Sông Lam Nghệ An match was brought forward from 14 February to 10 February.
