Abstract: Tourism has negative and positive impacts on natural environment. Negative impacts include effects on water and air environment, plant and animal, soil and done erosion, and aesthetics. Statistical results of monitoring data for the air environmental quality of Maoshan tourist site of both before and after exploitation have shown that tourism has negative impacts on air environmental quality. Statistical result and evaluation results of monitoring data for the water environmental quality of Changdanghu tourist site of both before and after exploitation have also shown that tourism has negative impacts on water environmental quality. Positive impacts include establishing natural protection are as protecting ocean, vegetation and wetland, encouraging marginal land development and educating the masses. To ensure a permanent and sustainable tourism industry, countermeasures are: alternative tourism, environmental planning for travelling areas, experimental track for the environmental impacts of tourism comprehensive research model for the cumulative environmental impacts of tourism.