Passports and visas should be written in Chinese characters or national languages, not pinyin. When the police accept the case, the applicant's signature must be his own. Signature is signed in a customary way, and ethnic minorities can sign in minority languages. The signature should be written horizontally and in a rectangular box, and no line pressing is allowed.

China citizen passport signature has the following provisions:

1. The signature must be signed by the holder himself at the signature place specified in the passport, and no one else can replace the signature.

2, must use Chinese characters (or the national language) signature, shall not use Chinese Pinyin, English or other foreign language signature.

When signing, you must use an ink pen, not a ballpoint pen or pencil.

4. The signature style on the photo must be the same as that on the visa application form.