Abstract：Not only a social, cultural and economic event, mega-event is of great spatial attribute. In fact, it always acts as the realization way of socio-economic practice. As implanted event, but also a great power source of transferring urban context, restructuring urban space and enhancing urban tourist competitiveness. Urban developments (such as new area construction and old residential area renovation) caused by hosting mega-event enhance the development of new multi-functional area in the city and foster tourism-related industries development which lead to improved tourist conditions and developmental environments. Therefore, mega-event is not only one of the most attractive tourist attractions, but also lead to unconventional evolvement in morphology, quality and scale of the urban tourist spatial structure. In short, the mega-event has the profound influence on urban tourist space. On the basis of studying related definitions and tourist character that mega-event take (trigger→indicator→regulator), the author analyses the influence mechanism of mega-event on the urban tourist spatial development from the angle of time peak,spatial fission, and operational network. The author asserts that the mega-event brings opportunities to urban tourist spatial adjustment and update, what' more, it also induce the imbalance. So it is not only the dynamic and opportunity, but also pressure and challenge. Great attention should be paid to the use of mega-event effect. By taking 2010 Shanghai EXPO for instance, the author explores the mutual development of 2010 Shanghai EXPO and the urban tourist space. Located in Huangpu River waterfront area between Lupu Bridge and Nanpu Bridge, the EXPO garden congregates large mount of tourism-related industries. The EXPO garden becomes new tourist landmark and growth pole, constructs waterfront landscape belt along Huangpu River, combines the traffic between two banks and promotes the development of Huangpu River toward world-class waterfront landscape. The most important is that the EXPO garden restructures and balances Shanghai urban tourist spatial structure which takes on balanced and multi-poles pattern.
