For China work visa application, the below documents are required:
1.Properly and truthfully filled out Visa Application Form, to which one passport-size photo is attached
2.Valid passport with blank pages and a photocopy of the data page
3. Employment Permission and "Invitation Letter of Duly Authorized Unit", the two documents should be provided by your employer, which are the most important documents for work visa application.
4. Physical examination record for foreigners