Gary Snyder enjoys a great reputation in contemporary America as a poet, essayist, translator as well as environmentalist. He proposes an extraordinary idea about the sacrament in his well-known The Practice of the Wild. This paper attempts to interpret Snyder's understanding of sacrament from three dimensions, namely, its background, characteristics, and contemporary value. It is hoped that this paper can provide a new path to apprehend Snyder's ecological views.