Tourism income is very important to the development of the district economy. Several sectors are included in the tourism industry, a rational sector structure can increase the tourism income highly. To pursue the rational sector structure, based on the annual statistical data from the tourism annals of Shaanxi province, the sector structure of oversea tourism industry in Shaanxi is analyzed as a case by using Shift-share Method. Three indexes of tourism industry are calculated that include share, structure shift and competitive shift respectively. Then their location in the coordinate is depicted, with this figure, different sectors which include long-distance transportation, visitation, hotel, drinking(cuisine), merchandise shopping, entertainment, posting(telecom), municipal transportation can be analyzed in detail. The result of this analysis indicates that in the sector of tourism industry of Shaanxi Province, well-based, strong-competitive sectors include merchandise shopping, posting(telecom) and municipal transporting; well-based but less-developed, comparatively well-competitive sectors include hotel and drinking(cuisine), well-based but weak-competitive sectors include long-distance transportation, itinerary and recreation. Then, based on the analysis of developing condition of different sectors, their respective strategy and measurement is given.At last, application of Shift-share Analysis Method is assessed. The author think that even the method of SSM belong to a description mode that cannot be used to explain the cause of sector structure, but the analyzing results are reliable. As a comprehensive and dynamic method, this method has its superiority .it is useful in indicating the causes and mechanism of tourist sectors. Being one of the effective methods, it can be applied on confirming the main directions of inbound tourism industry in China.