This research aims to analyze the sustainable tourism development implementation in Bromo-Tengger -Semeru (BTS) national park based on Elkington’s Triple Bottom Line and Muller’s sustainability pentagon. This is an exploratory research where methodology was flexible and aims to investigate the nature of the problem in order to get its better understanding. Qualitative data was analyzed using descriptive qualitative analysis. Quantitative data was analyzed using descriptive statistic analysis. Qualitative and quantitative approach is adoptive in this research. Data is collected through observation, in-depth interviews, documentation and questionnaire. This research concludes that tourism brings a lot of positive impact for the people around the BTS area especially in the social, local culture aspect and the well-being of the people. In the social and local culture aspect, the local wisdom working together (gotong royong) and helping each other as part of the community is increasing. On the other hand, negative impact can be seen in the environment. This research is original as it offers bird eye view of sustainable tourism development analysis based on Elkington’s Triple Bottom Line and Muller's Sustainability Pentagon.