This paper makes a critical review about the researches on the tourists, studies the structure characteristics of tourists in different development stages. Based upon quantities of questionnaires and field surveys in Jiangsu, the structure characteristics of domestic tourists to Jiangsu is analyzed. Firstly, the paper shows that the number of tourists increased steadily from 1980s. Then, the paper explores the structure characteristics of domestic tourists to Jiangsu in four aspects. The conclusions include: a) The social economic characteristics of domestic tourists accord with that of initial industrial society. b) The motives of tourists are sightseeing, making holiday, leisure and business. The mass products are preferred. Tourists usually travel with family or partners and only staying less time in one destination. c) The Conventional Mass Tourism is in dominate position, especially the sightseeing. The consumption of hotel, food and traffic is much more than shopping, visiting and amusement. It shows a high efficient organizational network in the structure of Jiangsu tourism industry hasn't been formed. d) Tourists often choose more scenic spots and Partial Orbit Mode or Full Orbit Mode with long distance, but concentrate in the south and middle cities of Jiangsu. e) The spatial distribution is concentrated in the tourist origins near Jiangsu Province. It proves the law of distance decay. But due to the level of economic development, the spatial distribution has developed a pattern which is different from the law of distance decay. Furthermore, the Attraction Radius of Jiangsu is largenning, and the tourist origins are spreading around all over the country. Lastly, the paper demonstrates that the domestic tourism in Jiangsu is in the restructure stage. The features are interlaced both in the initial industrial society and medium-post industrial society. Some guidelines are also briefly discussed such as innovation and organization coordination, strategic alliance, etc.