This study examines the relationships among environmental knowledge, environmental awareness, environmental concern, and employee ecological behavior to implement green practices across the hotel industry. Structural equation modeling with a bootstrapping estimation was used with 385 employees from international tourist hotels in Hong Kong. The results show that environmental knowledge positively influences environmental concern and ecological behavior. In addition, employee environmental awareness mediates the relationship between environmental knowledge and concern, while both environmental awareness and concern appear to mediate the relationship between environmental knowledge and ecological behavior. The theoretical and practical implications of study results are discussed and suggestions for future research are provided.