The high-speed railway rapid development in China, with the arrival of the era of high-speed railway, tourists’ choice appears new changes. From monetary cost and time cost of the passenger, this paper studies four common transportations between Kunming and Shanghai, including high-speed railway, ordinary railway, expressway, and aviation, and studies and quantifies the travel cost. It is concluded that critical distance of different transportations by building the passenger travel cost model. This can be found that high- speed railway extends the travel distance. High-speed railway has an impact on ordinary railway, expressway, and aviation. Through the results of the analysis, the service advantages of high-speed railway compared with other modes of transportation are illustrated.