This paper reported a study of energy consumption of 27 starred hotels in Hainan Province. Total and subentry energy consumption indicators were defined to indicate the building energy efficiency after collecting the building basic information and energy consumption of these hotels. Eighteen potential independent significant factors were selected to analyze energy utilization indicators (EUIs) and the climate adjusted energy utilization indicators (EUIclt) were calculated by using the degree-day method. Then, multiple regression analysis between EUIclt and continuous scale factors was applied to establish the normalization EUI data model and results indicated that the electricity percentage, number of guestrooms and equivalent guestrooms are the key points influencing total energy efficiency of hotels. Lastly, on the basis of multi-factor analysis of variance (ANOVA) between the EUInorm and categorical factors of the sampled hotel buildings, double glazing window is the significant factor that influences the total unit energy consumption greatly. (C) 2013 Elsevier Ltd. All rights reserved.