Abstract: Between man and nature there exists subjectivity， and the dominant position endowed by man and nature and the subjects extension to nature have laid a theoretical possibility for friendship. As the foundation of friendship， benevolence restores the nature of friendship. By advocating a close relationship for the sake of kindness and fortune of the beloved， it extends the definition of traditional friendship in the depth of connotation and denotation. Under the background of love， between man and nature there exists culture， which carries the connotations of friendship. The nature and tradition of culture have verified the cultural content and friendship between man and nature. The friendship between man and nature has experienced the remodeling of different civilizations， and not achieved the essential sublimation until the emergence of ecological civilization.

Key words: human and nature, friendship culture, inter subjectivity, cultural attribute