business and trip visa documents for China ?

Basic requirements are your passport, application form for China visa and photo. To apply for a China business visa, you need to provide following documents:
1.Invitation letter from your inviting Chinese organization/company;
2. Original invitation or confirmation letter (used to be called Visa Notice) from an authorized government organization like the local foreign affairs office or etc. in China;
Sometimes, you may be required Your bank statement (personal or company), round-trip ticket, hotel bookings in China if visa officers deem necessary.