Need to get 3 month continues VISA

You need first an official invitation letter from China to apply for a business visa. If you want to stay in China for 3 months, you can apply for a double entry business visa.

Thanking for your quick respond.
Is any additional documentary needed for apply double entry business visa?
Pls explain required documents.

Regards,
Iranga

You can apply for a business visa to China. Generally, a single entry China visa has 30 days validity. If you want to stay longer, you can apply for F visa extension at local PSB with related proof materials. It is applicable to use a visa agency if necessary. Or, you can apply for a double entry or multiple entry China visa directly before leaving for China. Thus, you need to provide invitation letter, passport, application form, photo, covering letter. Sometimes, you are also required a bank statement, flight ticket and hotel reservations if visa officers deem them necessary.