The purpose of this study is to help for hotel enterprise to forecast the operating results by Exchange rate fluctuating. hotel enterprise have limitations in operating forecasting with various variables. so this study is to help for hotel enterprise to do operating forecasting with one variable easily. The process of this research are as follows: first, analyze relations between Exchange rate fluctuating and international import revenues. second, following first result, review relations between Exchange rate fluctuating and tourism revenues. third, analyze correlations and regression with month, with region, district and with grade. forth, estimate and interpret results of analysis by month, by region and by grade. final, suggest that private hotel enterprise should use this analysis method for operating forecasting as results of this research, Exchange rate fluctuating didn`t influence the revenues of hotel enterprise by month, did influence the revenues of a few hotel enterprise by region and only did influence the revenues of traditional hotel enterprise by grade