pls send me detail how i can get china visa for business purpose thanx

You have to prepare the following documents and apply for it at the visa office of the Chinese consulate or embassy. A passport with blank pages and at least six months validity, one completed application form with recent color passpot-sized photo affixed to it and an Invitation Letter of Duly Authorized Unit. Sometimes, you are required to give submit a copy of Chinese hotel reservation, return air ticket booking and financial proof.