Opening ceremony of “The 9th annual symposium” held in Shanghai on Sept. 26th by Shanghai Association for Science and Technology (SAST). Vice Chairman of SAST Mr. YU Tao presided over this opening ceremony. Technical and administrative persons, technical persons from societies, associations, research societies under SAST attended the opening ceremony. Five representatives from SCS were also invited to participate in it. The Chairman of SAST academician Mr. SHEN Wenqing, Chairman of Shanghai Engineer Association, Academician Mr. WONG Shi-lie made their addresses. The Vice Chairman of Shanghai People’s Political Consultative Conference, Vice Chairman of SAST Mr. GAO Xiao-mei, Vice Secretary of Shanghai Scientific and Technical Branch of Communist Party Mr. CHEN Long issued the Certifications of Star-class Societies under SAST. After the opening ceremony special invited professor of Fudan University, the Director of Shanghai Library Mr. GE Jian-xiong presented his report titled 《The relationship between human and nature from view of history and geography》; special invited professor of Jiaotong University Director of Computer Science and Engineering Department Mr. GUO Min-yi presented his report titled 《Opportunities and challenges by cloud computing》, respectively.