The recreation tour industry becomes one of the most important industries gradually, in recent years. Combining recreation and hot spring is most people favorite of recreation tour actions. However, the management of hot spring hotel has most influence to Taiwan?s hotel. Hence, this paper want to discover what key success factors for management of hot spring hotel in Japan and provides those key success factors to hot spring hotel in Taiwan. This paper evaluates and analysis key success factors form ?Web service surface? and ?basic of hot spring hotel surface? in order to find the key success factors of hot spring hotel in Japan. The data collected from web pages of hot spring hotel and questionnaire. There are nine factors in ?Web service surface? and there are ten factors in ?basic of hot spring hotel surface?. First, this paper used the correlation analysis to find the Pearson Correlation of each factor and housing rate. Finally, finding the key success factors by Regression analysis. The result shows key success factors are web search fast and web page satisfactory in ?Web service surface?. And the key success factors are location, hot types and price tactic in ?basic of hot spring hotel surface?. Hence, when manage the hot spring hotel must consider the five key success factors; it will have the best competition vantage.