For those looking to work in China there are certain steps that must be taken to obtain a China "Z Visa", also known as a work visa.
If you intend to go to China to study, you must obtain a Study Visa (X), unless your studies will last for less than 6 months, in which case, you can apply for a Business Visa (F).
If you want to apply for a Chinese visa, you need to prepare the following documents.
Issued to those who are family members of Chinese citizens or of foreigners with Chinese permanent residence and intend to go to China for family reunion, or to those who intend to go to China for the purpose of foster care. The intended duration of stay in China exceeds 180 days. "Family members" refers to spouses, parents, sons, daughters, spouses of sons or daughters, brothers, sisters, grandparents, grandsons, granddaughters and parents-in-law.
Overview
Haikou 
Sanya