Abstract: Green Mansions is the masterpiece of William Henry Hudson, a successful English writer in the 19th century. Green Mansions reflects the author's meditation on the relationship between human and nature and contains rich ecological thoughts. In Green Mansions, Hudson highly praises the harmonious relationship between human and nature, actively advocates returning to nature and integrating into nature as well as ruthlessly discloses and criticizes the horrible consequences of conquering nature. In Green Mansions, Hudson appeals to human being to love and respect nature to realize harmonious relationship with nature.