what are the documents i should submit to the embassy to obtain visiting visa?

Except for your passport, application form and a recent six months passport photo, you hould provide:

1、A letter from the local travel agency or other travel organizer.
2、“Invitation Letter for Tourist” from Chinese Tourist Bureau
3、Travel itinerary
4、Company covering letter for each member（if applicable）
5、Less than three pages of the copy of Financial support document or copy latest month personal bank statement(please bring the latest 3 months original one)

thanks for early reply, my daughter in the Chinese university arranged all accommodation at foreign university students parents dormitory, so do i need another letter from tourist bureau and a travel itenary

Yes, you still need the invitation letter from Chinese tourist bureau and travel itinerary. I previously read that some people were refused for not abling to provide the invitation letter I mentioned. However, you could contact Chinese embassy to confirm this. These requirements are listed on the website of Chinese embassy in your country.