I need to obtain Visa to attend the meeting in First Institute of Oceanography

I am S.U.P. Jinadasa, Sri Lankan citizen working for National Aquatic Resources Research and development Agency (NARA) Sri Lanka which is the research arm of Ministry of Fisheries and Aquatic Resources Development. Currently, I am studying in the University of Notre Dame USA, I have a meeting in First Institute of Oceanography of Qingdao. Please kindly explain me how can i obtain it. The meeting will be held on July 07-13, 2013.