Z visa is issued to those who come to China for a post or an occupation together with their family.
You are supposed to offer the following credentials:
A. The period of validity gets up above 6 months (from the delivering day of application), providing the original passport with blank visa page;
B. One copy of "Visa Application Form", enclosed with a recent photo of 2×2 inches (white-and-black photo and color photo are both OK, pasted on the application form);
C. Letters or cables or faxes of the visa notice from the organizations authorized by Chinese government and the employment license for foreigners in PRC signed and issued by the Labor and Society Security Office or the original copy and the copy of the credential of retaining foreign experts.
Besides, the accompanying family members of the working people to China must present necessary kinship certificates (like marriage certificate, birth certificate and so on).
Tips: You are required to fill in the application form honestly and completely; if you fill it dishonestly or miss some contents or with unclear handwriting, your application may possibly be refused to sign and your traveling may be delayed.
The validity period and the period for staying of visa
Work visa (Z-character visa) has a valid period of 3 months for only once. The Z-visa holders must enter China within the validity period of 3 months and go to the local Ministry of Public Security to transact the procedure for staying within 30 days from the day of entering into China to draw the staying certificate.