How to apply a Chinese working visa (Z) from PRC consulate in US
Employment Visa
(Z-visa)
Requirements:
1. One completely filled out Visa Application Form for the P.R. China (Q-1). Right click to save E-form, Pdf form, or Jpeg form.
2. One recently taken 2X2 in. photo showing entire face and without a hat on. Please affix the photo to the application form.
3. Original passport with at least 2 blank visa pages and valid for at least 6 months beyond the date of application.
4. An invitation letter or telegram from the relevant department of the Chinese Government or Government-authorized company.
5. Original Foreign Experts Working Permit issued by the State Administration of Foreign Experts Affaris, or orginal and copy of Alien Employment Lisense issued by the Ministry of Labour amd Social Security, or other relevant permit of employment.
6. The spouse or children of the Z-Visa applicant who are following the applicant to stay in China are required to be listed in the above-mentioned invitation letter or telegram. Otherwise original and copy of Marriage Certificate or Birth Certificate to prove their relationship are also required.
7. An applicant born in China who is applying for a Chinese visa with his or her new foreign passport is required to submit his or her Chinese passport or last foreign passport.
8. A child of Chinese descent and born in a foreign country who applies for a Chinese visa for the first time is required to submit his or her Birth Certificate and foreign passport or foreign permanent resident permit (e.g. Green Card) of one of his or her parents.
Reminders:
1. No visa application can be done through mail, email, internet, or any express delivery service such as UPS, FedEx, etc. Visa application should be submitted and picked up by the applicant or someone else entrusted.
2. Z-visa is generally valid for 3 month. Applicants should apply for a residence permit from a local county level Public Security Bureau within 30 days after entering China.
http://www.nyconsulate.prchina.org/eng/lsqz/VisasforChina/t42204.htm#4