The 4th China Mortar Symposium, which was sponsored by Chinese Ceramic Society Housing Construction Material Branch, Cement Branch and Shanghai Ceramic Society and organized by Shanghai Tongji University, was held on Nov. 24th～25th, 2011 in Shanghai. Over 300 representatives coming from all directions of China attended this symposium. Plenary reports and seminars were arranged during the symposium. By the end of this symposium the participants were organized to visit Shanghai World Expo Park.