Tourism is an important part of the tertiary industry, but also the world economy sustained rapid growth of important strategic pillar, comprehensive industry. With the continuous development of the tourism industry, regional tourism competitiveness is growing, the paper chose Nanjing, Shanghai, Hangzhou, Wuxi, Nantong, and Ningbo six cities represented, AHP, Delphi method, radar analysis method to six City tourism competitiveness evaluation, evaluation findings are: (1) Nanjing, Shanghai, Hangzhou, Wuxi, Nantong, and Ningbo City Tourism comprehensive competitiveness six scores were 96.0646,92.9326,91.1522,84.1584,78.2667 and 66.8469. Shanghai, Hangzhou, Nanjing tourism competitiveness is strong, the other three city tourism competitiveness is relatively low. (2) Shanghai tourism overall tourism competitiveness is relatively strong, but in the history of civilization, at the level of competitive advantage is relatively weak; Hangzhou each index score more balanced, integrated tourism competitiveness ranking second, but relatively weak tourism extraversion; Nanjing in folklore and culture, history and civilization of tourism resources and competitive advantages of these three levels, but the level of economic development of comparative advantage is not obvious; Ningbo economic development level and the historical and cultural aspects of higher scores, while in tourism resources and tourism market size relative level score lower; Wuxi factors in the level of economic development, tourism resource levels have more competitive advantages, market size in tourism and urban landscape level low score; Nantong tourism economic development situation and history and civilization of these two factors have a certain level of competitiveness advantage, but compared to other five cities, Nantong index scores were lower in all, the comprehensive competitiveness in the last. In addition, the article also proposed to enhance the Yangtze River Delta region as a whole tourism competitiveness through: Government attaches importance to strengthen the guidance and cooperation, and promote the overall development of regional tourism; integrate tourism resources, strengthen its own position, highlighting local characteristics, enhance the overall attractiveness of regions; importance of education, focus on talent, strengthen tourism personnel training and tourism civilization; improve laws and regulations, legal system, regulate the tourism market, the healthy development of the tourism industry to provide a good environment