This study is based on almost all of the papers focusing on the relationships between tourism and environment- resources, from two tourism scientific SSCI journals and four journals in environment and resources field. They are Annals of Tourism Research (ATR), Tourism Management (TM), Environmental and Resource Economics (ERE), Ecological Economics (EE), Journal of Environmental Economics and Management (JEEM) and Journal of Environmental Management (JEM). According to these papers, we make a detailed analysis on the trends in tourism -environment relationship research and we come to many other significant conclusions. We have divided all the papers into four groups according to four topics, namely tourism resource valuation, tourism sustainability and ecotourism, tourism -environment -resource relationship, and tourism -environment -resource management. At present, about one-third of study cases are related to tourism resource valuation, but the valuation lacks theoritical foundation. Valuation methods vary a lot but they are used singly, without even shallow integration. So theoritical fondation thickening and method-integration are a meaningful task. And cultural tourism resources valuation is lacking. For China, the big country rich in its cultual heritage resources, cultural tourism resources valuation can be significant. Contents enrichment and quantification research on tourism sustainability and ecotourism should be the research focus in the near future. About the tourism-environment coupling relationship, we should consider the effects of environment on tourism industry or tourism activities. Relationship between tourism and climate change is another focus in future studies. Meantime, we cannot ignore the research on tourism impacts on the environment. Tourism-environment management, tourism taxation, environmental taxes and environmental or ecological certificates also need further-in-depth research. Besides, topics need furtherbroadening and more perspectives should be considered. The final purpose of tourism development is effectively managing the tourism environment -resources to achieve sustainability goals. Research on tourism resource valuation, sustainability and ecotourism, tourism-environment- resource relationship and tourism environmental management is favourable to solve the imbalance between tourism and environment-resources. Tourism sustainability is a long-term difficult job, and we should make every effort for tourism-environment management optimization.