What is the procedure for apply for chinese visa for bussiness person along with his family?

A simplest visa application should consist of a completed visa application form for China visa; a recent passport sized photo; a valid original passport with enough blank pages. Besides, if they will go to China for business, an invitation letter/fax from their contact in China is required, and sometimes, an invitation letter from a Chinese governmental department is required if visa officers deem necessary. Bring above documents to Chinese embassy directly. No appointment is needed.