Based on the survey results of the residents of Shanghai, the article analyses the different perception of economic impact of Expo among people who have been divided into several different age groups though the analysis of 13 major indexes which reflect the perception of economic impact of Shanghai World Expo in order to guide the planning, operations and development of larger-scale activities and establish a harmonious relationship to achieve mutual benefit among tourists, community and large-scale activities. We hope to provide some references for government, planners of large activities and the other related organizations of activities.