The final of 12 is the final key stage. The AFC will divide teams according to the strength of 12 teams, with two teams in each file, and finally draw lots to decide teams A and B, and each team will carry out the points system for home and away rounds. After all 10 rounds, the top two in the group will advance directly to the World Cup finals, and the third place in the two groups will need to play off. The winner will compete with teams from other divisions (this time Oceania) to decide the qualification for the World Cup.