The Little Prince is one of Antoine de Saint-Exupéry’s best known works.It is a fairy-tale written in different forms and is a famous novel taking the Second World War as its background.In this article,the author makes use of the image——the echo in the desert,and uses some techniques to connect the echo with other images in the novel,analyses the lonely atmosphere in the story.By this,the author points out the little prince’s simple but happy life and the grown-ups’busy but meaningless life,so as to insight into the lonely reality and hope for the happy life. The Little Prince is one of Antoine de Saint-Exupéry’s best known works. It is a fairy-tale written in different forms and is a famous novel taking the Second World War as its background. This article, the author makes use of the image - the echo in the desert, and uses some techniques to connect the echo with other images in the novel, analyzes the lonely atmosphere in the story.By this, the author points out the little prince’s simple but happy life and the grown-ups ’busy but meaningless life, so as to insight into the lonely reality and hope for the happy life.