What should I do if I lose my passport in Japan?

You need to go to the Chinese Embassy in Japan to apply for a replacement passport.

Documents and procedures required to reissue an ordinary passport:

1. Certificate issued by the police station.

2. Certificate of items recorded on the original registration ticket (issued by the local district office or city hall, valid within 3 months).

3. Original and copy of alien registration certificate.

4. 2 recent photos (3×4cm). Please refer to Personal Passport Update for photo requirements.

5. Please write down the details of the loss on a separate sheet, including the issuing unit of the original photo, time, passport number, entry and exit information, etc.

6. Fill in the "Application Form for Passport/Travel Certificate/Seaman's Certificate/Return to the Country of the People's Republic of China".

Extended information:

Under any of the following circumstances, the passport holder may apply for a replacement or reissue of passport in accordance with regulations:

(1) Passport The validity period is about to expire.

(2) The visa page of the passport is about to be used up.

(3) The passport is damaged and cannot be used.

(4) The passport is lost or stolen.

(5) Other circumstances when there are legitimate reasons to renew or reissue a passport.

Passport holders who apply for renewal or reissue of ordinary passports must apply in person to the exit and entry administration agency of the public security bureau of the local people’s government at or above the county level in the country where their residence is registered; abroad, they must apply in person to the People’s Republic of China It shall be submitted by the People's Republic of China's embassy, ??consulate or other overseas institution entrusted by the Ministry of Foreign Affairs.

If a Chinese citizen who has settled abroad applies for a renewal or reissue of an ordinary passport after returning to the country, he or she must submit the application to the exit and entry management agency of the public security bureau of the local people's government at or above the county level in the place of temporary residence. The renewal or reissue of diplomatic passports and official passports shall be handled in accordance with the relevant regulations of the Ministry of Foreign Affairs.

Baidu Encyclopedia--Passport