| Compared to many inland cities, coastal cities have been the more economically developed regions. The driver of economic provides a solid foundation for the development of coastal tourism industry. China exist long coastline and many coastal city, brought together with rich industry, such as the port, industrial, recreational and aquaculture. There are a number of coastal cities have successfully opened up the tourism market, especially large numbers of foreign tourists swarm into coastal city in summer. When actively promote the development of tourism, there have been series of environmental problems and faced the grim situation, due to the fragility of coastal ecosystems in the process of large-scale development. With its prime location, coastal city possesses broad space to development, so it should be particularly concerned about its sustainability in the development process, to prevent extensive reckless development. As an important indicator to measure sustainable development, the applied research of tourism environment carrying capacity(TEBC) has a certain necessity and practical significance. Therefore, for the presence of environmental vulnerability in coastal tourism, this paper measured the changes of TEBC in the coastal city on the basis of coastal environment, so as to better coordinate the relationship between coastal tourism, urban environment and socio-economic.By referring to relevant literature and data, this paper systematically summarized the related research theories and calculation methods of TEBC. On this basis, article builds computation models learning from maximize profits of economics, then to verify the feasibility using the coordinated development degree between environment and economy. Furthermore, the model made specific adjustments according to the characteristics of the coastal environment, including the travel cost estimates, the construction of coordinated development indicators. In this way, these studies provide a reference for the research on coastal tourism carrying capacity.Finally, this article have selected the coastal city of Xiamen as an example for instance analysis, include calculating the state of tourism environmental carrying capacity and coordinated development degree between environment and tourism economy through the collation of data aggregation in recent years. The study found Xiamen’s TEBC mostly deviate suitable carrier status through existing data. While the environment and tourism economy is overall still in a coordinated state, but the progress of environment significantly lagged behind the tourism economy. Therefore, Xiamen also needs to increase investment efforts in the tourism environment, so as to improving the tourism environmental carrying capacity. |