Multi Entry With One Year Validity

If you go to China for sightseeing purpose, you need to provide a filled-out application form affixed with a passport-style photo, your passport and its photocopy, round trip air tickets and hotel reservation, your travel plan, invitation letter, bank statement as well as other documents the consular officers consider necessary.

Also, I would like to know about the requirements of working Z in China for Cambodian passport holder.

Thanks

You need a filled-out application form affixed with a passport-style photo, your passport and its photocopy, work permit, medical certificate and the copy.