The objective of this research is to emphasis the attitude of local shop owners towards the importance, performance, tourism impact and future tourism development of the Southwest Coast National Scenic Area in Taiwan. The interviewed local shop owners believe the tourism development will bring more positive impact on local economy, social culture and environment than the negative impact. Also, this research shows the interviewed local shop owners support “expending tourism activity, development of Dongshih Fisherman Dock, tourism development and increase tourism facility”. Finally, this research suggests that the future development of Southwest Coast National Scenic Area should consider minimizing the negative impact of local economy, social culture and environment, and avoiding damaging the nature environment for sustainable tourism.