According to the several opinions of <RULES FOR THE ADMINISTRATION OF EMPLOYMENT OF FOREIGNERS IN CHINA>:

1. Healthy, suffering from mental disorder, leprosy, AIDS, venereal diseases, open tuberculosis and other infectious diseases, as well as during labor contract can not be suffered from heavy disease;

2. Have a legal contract from china company

3. Have professional skills and get corresponing qualifications, and more than two years woking experiences

4. No criminal record

5. Have  valid passport or other international travel credentials can replace passport

6. Men generally 18 to 60 years old; Women generally 18 to 55 years old.

According to the several terms of <RULES FOR THE ADMINISTRATION OF EMPLOYMENT OF FOREIGNERS IN CHINA>:

The foreigner who has got a employment agreement with the employer company in China, need to process the formalities for employment of  foreigners 

According to the several terms of <RULES FOR THE ADMINISTRATION OF EMPLOYMENT OF FOREIGNERS IN CHINA>:

Foreigners should be required by the employer, engaged in technical, management, or lack of appropriate candidates requires special skills, and foreigners can not violate the relevant laws and regulations in China.