In order to work and teach in China legally, you must possess a valid work permit.
Here is the list of documents you need to apply for a work permit.
Ø Foreigner work permit application form
Ø Employment contract/certificate/government authorization
Ø Valid passport/visa/ residence permit
Ø Non-criminal record certificate
Ø Work qualification certificate
Ø Medical certificate (except for expats holding a valid residence permit)
Ø Academic degree (the highest) or relevant professional qualification certificate (requires consulate certification)
For those talents (such as scientists and professional technicians), the Chinese government has opened a "green channel" to simplify the application process.
Ø Apply online without paper materials
Ø Applicants only need to make a commitment to the non-criminal record certificate
Ø Applicants do not need to get their academic certificates and qualification certificates notarized
Ø Foreigners who have obtained an A-type work visa (R-VISA) can directly apply for a foreigner work permit
Ø The processing time for the application is shorten to 5 working days
Ø The maximum validity period of the certificate is 5 years