What documents does China need to go to Jeju Island?

China needs a passport to go to Jeju Island.

No matter whether it is a group or an individual, as long as they show their valid passports and destination tickets or boarding passes to Jeju border police, they can go through customs clearance smoothly without going through any visa formalities and can stay in Jeju Island for 30 days.

Extended data

China citizens can travel to Jeju Island at any time by holding passports valid for more than 6 months (including blank passports, that is, those who have not left the country), booking direct flights to and from Jeju Island, and booking accommodation in local hotels in Jeju Island in advance (preferably printing hotel confirmation letters).

Passport is an important identity document for people going abroad, and the holder should take good care of it. All items in the passport should not be defiled or altered.

References:

Passport (legal certificate to prove citizenship and identity) _ Baidu Encyclopedia?